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21/03/2020 / Leave a comment
NEET-2020 Full Syllabus
(1) There is only one correct option.
(2) Duration of Test is 3 Hours and Questions Paper Contains 180 Questions. The Max. Marks are 720.
(3) Each correct answer carries 4 marks, while 1 mark will be deducted for every wrong answer. Guessing of answer is harmful.
1 / 180
The concept of genus was proposed by
2 / 180
Which one of the following branch is applicable to both plants and animals?
3 / 180
Phylogenetic system of classification was proposed by
4 / 180
When the oxygen supply to the tissue is inadequate, the condition is
5 / 180
Aggregates of lymphoid tissue present in the distal portion of the small intestine are known as
6 / 180
I. On plotting the length of an organ against time, a linear curve is obtainedII. Lt = L0 + rtIII. Following mitotic division, one daughter cell continues to divide while the other differentiate and mature.
Above are the properties of
7 / 180
Growth of an organism is characterised by
8 / 180
A plant have 13 hours critical day light under which condition it will flower
9 / 180
Glycolysis takes place in
10 / 180
During its formation, bread becomes porous due to release of Carbon dioxide by the action of
11 / 180
Identify the 5-C compound from the given option
12 / 180
I. Chlorophyll-aII. Chlorophyll-b
III. XanthophyllIV. Carotenoid
Separate the given pigments into the accessory and main pigments involved during photosynthesis
13 / 180
Which element is located at the centre of the porphyryin ring in chlorophyll?
14 / 180
Hydroponics were first time demonstrated in the year
15 / 180
Cohension and adhension theory, is otherwise called
16 / 180
Hydroponics is the method of
17 / 180
A cell dipped in 0.5 M sucrose solution has no effect but when the same will be dipped in 0.5 M NaCl solution, the cell will
18 / 180
Synapsis occurs between
19 / 180
Select the correct option with respect to mitosis.
20 / 180
Chloramphenicol and erythromycin (broad spectrum antibiotics) are produced by
21 / 180
A patient brought to a hospital with myocardialinfarction is normally immediately given
22 / 180
Which of the following enzymes helps in crossing plasma membrane?
23 / 180
Which of the following enzymes has/have haeme as a prosthetic group?I. CatalaseII. CarboxypeptidaseIII. Succinic dehydrogenaseIV. Peroxidase
24 / 180
Note the following statements.1. It forms the lining of the cavities of alveoli of the lungs.2. It forms the lining of wet surface like buccal cavity and oesophagus.3. It occurs in the ducts of sweat glands.4. It forms the lining of salivary glands and sweat glands.
Which of the above statements are associated with simple epithelial tissue?
25 / 180
For capturing the prey frog uses its
26 / 180
Which statements are correct about guard cells?I. They are modified ground tissueII. They are chlorophyllousIII. Its outer wall is thin and inner wall is highly thickenedIV. They regulate stomatal movement for transpiration and gaseous exchange
27 / 180
Vascular bundle without cambium is called
28 / 180
Ovary is half-inferior in the flowers of
29 / 180
Bright colour of petals is due to presence of
30 / 180
Pedicel of flower is called
31 / 180
Which is odd one?
32 / 180
Addition of which element in water speed up the metamorphosis in frog tadpole larva?
33 / 180
Different colours of frog skin are controlled by
34 / 180
Engulfing of food either in solid or liquid is called
35 / 180
In flowering plants meiosis occurs at the time of
36 / 180
Top-shaped multiciliate male gametes and the mature seed, which bears only one embryo with two cotyledons, are characteristic features of
37 / 180
Auxospores and homocysts are formed, respectively by
38 / 180
Fungi shows vegetative reproduction by all of the following except
39 / 180
When the body is rapidly oxidizing fats, excess ketone bodies accumulate resulting in
40 / 180
In which one of the following pairs, the two items mean one and the same thing?
41 / 180
Lead concentration in blood is considered alarming if it is
42 / 180
Glomerular area of adrenal cortex is responsible for
43 / 180
The expulsion of urine from the urinary bladder is called
44 / 180
Aldosterone causes conditional reabsorption of ….. in the distal part of tubule
a) CO2 b) Ca2+ c) Na+ d) Cl-
45 / 180
Myofilaments or myofibrils are
46 / 180
Colle's fracture is associated with
47 / 180
Sigmoid notch is present in
48 / 180
At the neuromuscular function acetylcholine
49 / 180
The following diagram indicates the reflex arc. Identify the parts labeled as A, B, C, D, E ,F and G and choose the correct option.
50 / 180
51 / 180
The macromineral essential for the formation of insulin is
52 / 180
'Bisexual animals that possess both male and female reproductive organs are called hermaphrodite'. The above statement is
53 / 180
In oviparous individuals development of zygote takes place
54 / 180
Identify A to E in the following diagram
55 / 180
Which one of the following pairs of plants structures has haploid number of chromosomes?
56 / 180
In which one pair, both the plants can be vegetatively propagated by leaf pieces?
57 / 180
Which of the following represents a condition, where the motility of the sperms is highly reduced?
58 / 180
Ovulatory phase lasts for
59 / 180
Function of bulbourethral gland is to
60 / 180
In which of the following animal, cleavage divisions are restricted to a small part of cytoplasm and nucleus in animal pole of egg?
61 / 180
Example of copper releasing IUD is
62 / 180
Growth curve is normally:
63 / 180
Mendel's experiment were based on hybridization between two plants differing in
64 / 180
A condition characterized by not having an exact number of chromosomes in a multiple of haploid set is called
65 / 180
Broadly the genetic disorders may be classified in …A… group Mendelian disorder and …B… disorders. Mendelian disorder are mainly determined by …C… in single gene.Choose the correct option for A, B and C
66 / 180
According to the Lac operon concept, which functional unit of the bacterial genetic material is responsible for suppressing the activity of the operator gene in the absence of lactose?
67 / 180
S and R strains have several subtypes which one were used by Griffith
68 / 180
Hugo de Vries based on his work on …A…brought forth the idea of …B…, large difference arising suddenly in a population. He believed that it is mutation which causes evolution and not the …C… that Darwin talked about. Mutations are random and …D…, while Darwinian variations are small and …E…Choose the correct option for A,B,C,D and E to complete the given statement
69 / 180
Which of the following features are connected with the modern theory of evolution?I. Genetic and chromosomal mutationII. Genetic recombination and natural selectionIII. Reproductive isolationThe correct combination is
70 / 180
Neurasthenia refers to
71 / 180
What is the name of complex formed at the time of action of T-cells?
72 / 180
Transformation of normal cell cancerous cell is induced by
73 / 180
The management of animals for milk and its products for human consumption is called
74 / 180
Rice, maize, sorghum and millets are the principal cereals of the:
75 / 180
The natural method of pest and pathogen control involving use of viruses, bacteria and other insects is called
76 / 180
Consider the following statementsI. Antibiotics are chemical substances produced by some microorganisms which can kill or retard the growth of other diseasecausing microorganismsII. Penicillin is the first antibiotic discovered by Alexander Fleming (1928), while working o bacterium StaphylococcusaureusIII. The function of penicillin as an antibiotic was established by Ernst chain and Howard FloreyWhich of the statement given above are correct?
77 / 180
Colony hybridization procedure for identification of plasmid clones is called:
78 / 180
Which of the following components are used ingel electrophoresis?I. Ethidium bromideII. Restriction endonucleaseIII. AgaroseIV. UV radiationChoose the correct option
79 / 180
A probe which is a molecule used to locate specific sequences in a mixture of DNA or RNA molecules could be
80 / 180
All are the biotechnological application in order to increase food production, except
81 / 180
Which of the following cells cannot be grown under tissue which of culture condition?
82 / 180
There are two optional ways of exploitation. One way is parasitism. Which is the other one?
83 / 180
Coconut water is rich in
84 / 180
Which one of the following correctly represents as organism and its ecological niche?
85 / 180
The relationship between the species richness and the area for a wide variety of taxa appears as
86 / 180
World summit on sustainable development was held in
87 / 180
UV-rays are non-ionizing type and are lethal due to inactivation of
88 / 180
It is used in refrigerator and air conditioners and it is a source of Cl-
89 / 180
Locust are the plant pests which can be solitary or gregarious. It depends upon
90 / 180
In case of honey bees, the queen bee substance or antiqueen pheromone is given out by
91 / 180
Which is a polymer of three different monomers?
92 / 180
In the natural rubber, the isoprene units are joined in
93 / 180
Which one of the following is not a protein?
94 / 180
Secondary nitroalkanes can be converted into ketones by using Y. Identify Y from the following
95 / 180
Gabriel's synthesis is used frequently for the preparation of which of the following?
96 / 180
Amides contain group, yet they do not give characteristic reactions of group because
97 / 180
The dehydration of butane-1-ol gives
98 / 180
99 / 180
One of the following that cannot undergo dehydrohalogenation is
100 / 180
Which of the following is not an isomer of but-1-yne?
101 / 180
Which metal gives hydrogen gas on heating with hot concentrated alkali?
102 / 180
The methods chiefly used for the extraction of lead and tin from their ores are respectively
103 / 180
In the manufacture of sulphuric acid by contact process, tyndall box is used to
104 / 180
Purest form of iron is
105 / 180
The luster of a metal is due to
106 / 180
107 / 180
In the reversible reaction
The rate of disappearance of NO2 is equal to
(b) 2k1[NO2]2 - 2k2[N2O4]
(c) 2k2[NO2]2 - k2[N2O4]
108 / 180
The cell reaction of the galvanic cell, Cu (s) | Cu2+(aq) || Hg2+(aq) | Hg (l)
a) Hg + Cu2+ ⟶ Hg2+ + Cu
b) Hg + Cu2+ ⟶ Cu+ + Hg+
c) Cu + Hg → CuHg
d) Cu + Hg2+ ⟶ Cu2+ + Hg
109 / 180
For a gaseous reaction, the units of rate of rate of reaction are
110 / 180
How many grams of dibasic acid (mol. wt. 200) should be present in 100 mL of the aqueous solution to give 0.1 N?
111 / 180
Assuming that sea water is a 3.50 weight per cent aqueous solution of NaCl. What is the molality of sea water?
112 / 180
Which element is used for making a transistor?
113 / 180
Which one of the following is a covalent crystal?
114 / 180
Addition of phosphate fertilizers into water leads to
115 / 180
An organic alkadiene on reductive ozonolysis produces(i)acetaldehyde
(ii) acetone(iii) 2-methylpropane-1, 3-dialThe formula of alkadiene will be
116 / 180
The conditions for aromaticity is
117 / 180
Which of the following is most likely to show optical isomerism?
118 / 180
Which of the following is used in making printer's ink, shoe polish, black varnish and paint?
119 / 180
The correct order of increasing atomic radii, is
120 / 180
The carbonate that will not decompose on heating isa) Na2CO3
121 / 180
When hydrogen peroxide is added to acidified potassium dichromate, a blue colour is produced due to formation ofa) CrO3
122 / 180
The oxidation number of chromium in potassium dichromate is
123 / 180
The reaction,Ag2+ (aq) + Ag(s) ⇌ 2Ag2+ (aq)
is an example of
124 / 180
100 mL of 0.015 M HCl solution is mixed with 100 mL of 0.005 M HCl. What is the pH of the resultant solution?
125 / 180
The quantity of heat measured for a reaction in a bomb calorimeter is equal to
126 / 180
Hess's law is used to calculate
127 / 180
If both oxygen and helium gases are at the same temperature, the rate of diffusion of O2 is very close to
128 / 180
In the anion HCOO- the two carbon-oxygen bonds are found to be of equal length. What is the reason for it?
129 / 180
Which of the following elements never show positive oxidation number?
130 / 180
The uncertainty in momentum of an electron is 1 × 10-5 kg m/s. the uncertainty in its position will be ℎ = 6.62 × 10-34 kgm2/s
a) 2.36× 10-28 m b) 5.25× 10-28 mc) 2.27× 10-30 m d) 5.27× 10-30 m
131 / 180
What does the electronic configuration 1 s2, 2 s2, 2 p5, 3 s1 indicate?a) Ground state of fluorine
b) Excited state of fluorinec) Excited state of neond) Excited state of the O-2 ion
132 / 180
Law of constant composition is same as the law of
133 / 180
2 g of metal carbonate is neutralised completely by 100 mL of 0.1 (N) HCl. The equivalent weight of metal carbonate is
134 / 180
Electrovalence of calcium and chlorine respectively is
135 / 180
A given fiber has core refractive index of 1.5 and a core cladding index difference factor (Δ) of 0.01125. The numerical aperture is
136 / 180
For good demodulation of AM signal of carrier frequency f, the value of RC should be
137 / 180
The main cause of zener breakdown is
138 / 180
Consider two nuclei of the same radioactive nuclide. One of the nuclei was created in a supernova explosion 5 billion years ago. The probability of decay during the next time is
139 / 180
The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy
140 / 180
The ionization energy of Li2+ is equal to
141 / 180
Cathode rays are similar to visible light rays as
142 / 180
In vacuum an electron of energy 10 keV hits tungsten target, then emitted radiation will be
143 / 180
If fringes width λ = 5.89 x 10-5 cm is 0.431 mm and shift of white central fringe on introducing a mica sheet in one path is 1.89 mm. Thickness of the mica sheet will be(μ = 1.59)
144 / 180
A light ray is incident upon a prism in minimum deviation position and suffers a deviation of 34°. If the shaded half of the prism is knocked off, the ray will
145 / 180
A large glass slab μ = 5/3 of thickness 8 cm is placed over a point source of light on a plane surface. It is seen that light emerges out of the top surface of the slab from a circular area of radius R cm. What is the value of R?
146 / 180
The wave of wavelength 5900 Å emitted by any atom or molecule must have some finite total length which is known as the coherence length. For sodium light, this length is 2.4 cm. The number of oscillations in this length will be
147 / 180
A resistor and a capacitor are connected in series with an AC source. If the potential drop across the capacitor is 5 V and that across resistor is 12 V, then applied voltage is
148 / 180
The natural frequency (ωo) of oscillations in L-C circuit is given by
149 / 180
The current i in an induction coil varies with time t according to the graph shown in figure.
Which of the following graphs shows the induced emf (e) in the coil with time
150 / 180
A bar magnet is oscillating in the earth's magnetic field with time period T. If its mass is increased four times, then its time period will be
151 / 180
A bar magnet of magnetic moment 104J/T is free to rotate in a horizontal plane. The work done in rotating the magnet slowly from a direction parallel to a horizontal magnetic field of 4 × 10-4 to a direction 60° from the field will be
152 / 180
Four charged particles are projected perpendicularly into the magnetic field with equal. Which will have minimum frequency?
153 / 180
What will happen when a 40 watt, 220 volt lamp and 100 watt, 220 volt lamp are connected in series across 40 volt supply
154 / 180
A thermo couple develops 200μV between 0℃ and 100℃. If it develops 6 4μV and 76 μV respectively between (0℃ − 32℃) and (32℃ − 70℃) then what will be the thermo emf it develops between 70℃ and 100℃
155 / 180
A tap supplies water at 22℃, a man takes of 1 L of water per min at 37℃ from the geyser. The power of geyser is
156 / 180
The electrostatic potential energy between proton and electron separated by a distance 1 Å is
157 / 180
Two equal charges as separated by distance d. A third charge placed on a perpendicular bisector at x distance from centre will experience maximum coulomb force, when
158 / 180
159 / 180
A string is rigidly tied at two ends and its equation of vibration is given by y = cos 2πt sin 2πx. Then minimum length of string is
160 / 180
Acceleration A and time period T of a body in S.H.M. is given by a curve shown below.
Then corresponding graph, between identic energy (K.E) and time t is correctly represented by
161 / 180
In simple harmonic motion, the ratio of acceleration of the particle to its displacement at any time is a measure of
162 / 180
Which of the following cylindrical rods will conduct maximum heat, when their ends are maintained at a constant temperature difference?
163 / 180
Value of adiabatic bulk modulus of elasticity of helium at NTP is
164 / 180
A diatomic ideal gas is compressed adiabatically to 1/32 of its initial volume. In the initial temperature of the gas is Tf (in kelvin) and the final temperature is Tf, the value of a is
165 / 180
If the ratio of densities of two substances is 5 ∶ 6 and that of the specific heats is 3 ∶ 5. Then the ratio between heat capacities per unit volume is
166 / 180
Two capillaries of radii r1 and r2, length l1 and l2 respectively are in series. A liquid of viscosity η is flowing through the combination under a pressure difference p. What is the rate of volume flow of liquid?
167 / 180
Water flows steadily through a horizontal pipe of variable cross-section. If the pressure of water is p at a point where flow speed is ν, the pressure at another point where the flow speed is 2ν, is (take density of water as ρ)
168 / 180
The general form of potential energy curve for atoms or molecules can be represented by the following equation U(R) = A/Rn − B/Rm. Here, R is the interatomic or molecular distance, A and B are coefficients, n and m are the exponents. In the above equation
169 / 180
If the density of the earth is doubled keeping radius constant, find the new acceleration due to gravity? (g = 9.8 m/s2)
170 / 180
A ball falls freely from a height of 45m. When the ball is at a height of 25 m, it explodes into two equal pieces. One of them moves horizontally with a speed of 10 m/s. The distance between the two pieces when both strike the ground is
171 / 180
Which relation is not correct of the following
172 / 180
A spring, which is initially in its unstretched condition, is first stretched by a length x and then again by a further length x. The work done in the first case is w1, and in the second case is w2. Then
173 / 180
A force of 1200 N acts on a 0.5 kg steel ball as result of collision lasting 25 ms. If the force is in a direction opposite to the initial velocity of 14 m/s then the final speed of the steel ball would be
174 / 180
A heavy uniform chain lies on horizontal table top. If the coefficient of friction between the chain and the table surface is 0.25, then the maximum fraction of the length of the chain that can hang over one edge of the table is
175 / 180
In uniform circular motion, the velocity vector and acceleration vector are
176 / 180
A body of mass m is projected at an angle of 45° with the horizontal. If air resistance is negligible, then total change in momentum when it strikes the ground is
177 / 180
A packet is dropped from a balloon which is going upwards with the velocity 12 m/s , the velocity of the packet after 2 seconds will be
178 / 180
In the equation Snth = u + a/2(2n-1) the letters have their usual meanings. The dimensional formula of Snth is
179 / 180
The time dependence of a physical quantity p is given by p = Poeαt2 -αt2 where α is a constant and t is time. Then constant α is
a) Dimensionlessb) Dimensionless of T-2c) Dimensionless of Pd) Dimensionless of T2
180 / 180
Which form of iron is least ductile
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22/02/2020 / 62 Comments on TEST-1
In Which of the following plant primary root is short lived and new roots originate from the base of stem:-
Choose the correct statements from the following :-(A) Living organisms are self replicating, evolving and self regulating(B) Cellular organisation, metabolism and consciousness are defining characters of living(c) Growth, reproduction, ability to sense environment and respond are features of living organisms(D) Growth and reproduction are defining charateristics of living organisms
Position of heart wood is :-
Which of following is a living mechanical tissue?
The aestivation in petals of lady finger and calotropis plants are respectively.
Which of the following is not related to solanaceae?
Among the following which is a vasodilator ?
Ornithine cycle performs
An organism having radial cymetry Diploblastic, having 8-cilliary comb plates, performing only sexual reproduction most probably organism is ?
A jawless fish which lays eggs in fresh water and whose larvae ammocoetes comes back to marine water is ?
At the junction of midgut and hind gut about 100-150, yellow coloured thin filamentous structure is present known as ?
Agriculatural practice of breeding and raising livestock is known as ?
Evolutionary relationship of three major group of organisms is shown in the diagram where A, B, C, D, E are liverworts, moss, fern, cycadales and gnetales respectively. In this diagram Funaria, Adiantum, Cycas and Ephedra will be placed respectively :-
Some characters or structures are given below. How many of them are found in both bryophyta and Pteridophyta :-(A) Archegonium (B) Protonema(C) Rhizoids (D) Ovule(E) Vascular tissue (F) Antheridium
How many plants given below are heterosporous pteridophytes ?Selaginella, Riccia, Salvinia, Marchantia,Azolla, Lycopodium, Funaria, Psilotum
Identify the following figures and choose the option which gives correct description about them :-
Choose incorrect match out of following :-
Choose the incorrect statements of following :-
Water prevention and control of pollution act apply in India :-
In "Rivet popper hypothesis " "Rivet" indicates :-
Phytotron is a device in which :-
Which of the following is an example of Sedimentory bio-geo-chemical cycle ?
Veldts in Africa and Pampas in South America is an example of which Biome :-
In which biome clear stratification present :-
Storage of energy at consumer level known as :-
Overlapping zone between two ecosystem is known as :-
In which ecosystem pyramid of number is inverted :-
Which of the following is an energy source in ecosystem ?
Which of the following condition not associated with 'Alcoholic liver disease' ?
Most addictive drug and most potent hallucinogen respectively ?
Pyrogenic toxin secreted in human body during life cycle of plasmodium ?
Fill in the blanks respectively..............acts as an antigen presenting cell which activates...............which in turn secrete lymphokine to activate both...........&........ . Now these cells perform specific cloning known as............. .
Change with desent is the basis of which theory
Analogous organs are :
In 1953 S.L. Miller created electric discharge in a closed flask containing the gaseous mixture
Consider the following four statements (1-4) and select the option which includes all the correct ones only :(1) Huge clusters of galaxies comprise the universe(2) Galaxies contain stars and clouds of gas and dust(3) Considering the size of universe, earth is indeed a speck(4) The gases condensed under gravitation and formed the galaxies of the present day universe.
Somatic embryogenesis is technique of :-
Green revolution in India occured during :-
Which of the following r-RNA acts as ribozyme in bacteria ?
Functional unit of gene is :-
Which of the following is required as inducer for the expression of lac operon ?
Which one of the following represents a pallindromic sequence in DNA :-
Which of the following is not a Bt crop ?
A good producer of butyric acid is :-
The colonies of non-recombinant bacteria appers blue in contrast to white colonies of recombinant bacteria because of :-
Which enzyme/s will be produced in a cell in which there is a mis-sense mutation in the lac Y gene ?
Inulin is :-
The tendency of population to remain in genetic equillibrium may be disturbed by :-
Which of the following statements is true of two genes that show 50% recombination frequency?
A test cross is carried out to :-
Tobacco plant resistant to a nematode have been developed by introduction of DNA that produced (in host cells).
How many of the following hormones are secreted by placenta during pregnancy HPL estrogen, progesterone FSH, Thyroxin, Cortisol, LH, Prolactin, relaxin.
When there is a sudden loss of blood from the body the organ which supplies blood is :-
Menstrual cycle is initiated by :–
At the time of parturition oxytocin release from.
Correct sequence for milk ejection are :
Unitegmic ovule is found in
Consider the following statements-(i) In angiosperm a typical embryosac at maturity is 7 nucleated, 8 celled.(ii) Fertilization is angiosperm is called double fertilization because two polar nuclei and one male gamete fused.(iii) Formation of endosperm always preceds development of the embriyo.Which of the above statements is/are correct?
Which one the correct match from the following ?
Identify the correct match from the Column I, II and III.
Which of the following type of ovule is also called resupinate ovule ?
Given below is the diagrammatic sketch of a structure of maize seed. Identify the parts labelled A, B, C and D and select the right option about them:-
Sensory neurons are found in the dorsal root of spinal cord. Which is.
Thyroxine is a.
Injury to adrenal cortex is not likely to affect the secretion of which one of the following hormone
The cavity of mid ear is connected to the cavities of mouth by a tube called
The Tympanic membrane is connected to
The type of muscles present in our :
Which statement is wrong ?
In human being, the second cervical vertebral helps in rotatory movements of head through knob-like process called :-
Which one of the following is the correct match of digestive enzyme and substrate.
Bulk of carbon dioxide (CO2) released from body tissues into the blood is present as :
Maximum absorption of digested food takes place in :-
Surgical removal of gall bladder in human beings would lead to
Glucose,galactose and fructose all have the same molecular size and composition and their absorption through the mucosal cells takes place :-
Which one of the following is not a source of natural CK ?
Which one of the following hormone play important role in seed development, maturation and dormancy :-
(A) PGRs are complex, organic and inter cellular factors.(B) PGRs are nongenetic factors
Low temperature treatment to speed up the process of flowering is referred to as :-
Find the incorrect match :-
Activation for alcohol dehydrogenase and nitrogenase are respectively :-
How many of the following purpose carried transpiration ?(i) Creates transpirational pull for absorption of water(ii) Supplies water for photosynthesis(iii) Transport minerals in every direction with in a plant(iv) Cools leaf surface(v) Maintains the shape and structure of the plant
Refer the given figure. What does it represent?
Prophase I is divided into how many phases based on chromosomal behaviour ?
Synaptonemal complex is formed in :-
In primary structure of protein :-
Sequence or positional information of amino acid is given by the :-
Resistance to antibiotics is conferred by :-
What is the length of mycoplasma cell ?
Cell had a thin outer layer which is known as "Plasma membrane" who reported this ?
The equation for the position of train starting at x = 0 m is given by x = 0.5t2 + bt3 , here t is time. The dimensions of b is :
Two vectors A and B have magnitudes 2 and 1 respectively. If the angle between A and B is 60°, then which of the following vectors may be equal to 0.5A– B ?
Which of the following is related with characteristic emission of X-ray :–
Half-life of radioactive sample, when activity of material initially was 8 counts and after 3 hours it becomes 1 count, is
The following figure shows a logic gate circuit with two inputs A and B and the output Y. The voltage waveforms of A, B, and Y are as given?
The logic gate is :-
If λmax is 6563 Å, for Balmer series of a particular atom then wavelength of second line for Balmer series will be
For a CE amplifier, current gain is 69. If the emitter current is 7 mA then the base current and collector current will be -
A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation which of the following is true ?
The observer at O views two closely spaced spots on a vertical wall through an angled glass slab as shown. As seen by observer, the spots appear.
In an experiment, electrons are made to pass through a narrow slit of width 'd' comparable to their de-Broglie wavelength. They are detected on a screen at a distance 'D' from the slit (see figure). Which of the following graphs can be expected to represent the number of electrons 'N'detected as a function of the detector position 'y' (y = 0 corresponds to the middle of the slit) ?
Two beams of light having intensities I and 4I interfere to produce a fringe pattern on a screen. The phase difference between the beams is π/2 at point A and π at point B. Then the difference between the resultant intensities at A and B is :
The path Difference between the two waves
Mechanical wave (sound wave) in a gas is :-
How long after the begining of motion is the displacement of a harmonically oscillating particle equal to one half its amplitude if the period is 12 sec and particle starts from rest :-
A body is executing simple Harmonic motion. At a displacement x it's potential energy is E1 and at a displacement y, its potential energy is E2. The Potential energy E at a displacement (x + y) is :-
Energy is being emitted from the surface of a black body at 127°C temperature at the rate of 1.0 × 106 J/s–m2. Temperature of the black body at which the rate of energy emission is 16.0×106 J/s–m2 will be:
5.6 liter of helium gas at STP is adiabatically compressed to 0.7 liter. Taking the initial temperature to be T1, the magnitude work done in the process is
If the internal energy of n1 moles of He at temperature 10T is equal to the internal energy of n2 mole of hydrogen at temperature 6T. The ratio of n1/n2 is
50 gm of copper is heated to increase its temperature by 10°C. If the same quantity of heat is given to 10 gm of water, the rise in its temperature is:
(Specific heat of copper =420 Joule kg-1 °C-1)
A 20 cm long capillary tube is dipped in water. The water rises upto 8 cm. If the entire arrangement is put in a freely falling elevator, the length of water column in the capillary tube will be-
If S is stress and Y is Young's modulus of material of a wire, the energy stored in the wire per unit volume is-
From a solid sphere of mass M and radius R a cube of maximum possible volume is cut.Moment of inertia of cube about an axis passing through its centre and perpendicular to one of its faces is :-
A particle of mass m moves along line PC with velocity v as shown.What is the angular momentum of the particle about O ?
From a solid sphere of mass M and radius R, a spherical portion of radius R2 is removed, as shown in the figure. Taking gravitational potential V = 0 at r = ∞, the potential at the centre of the cavity thus formed is : (G = gravitational constant)
Two particles of equal mass 'm' go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle with respect to their centre of mass is:-
In the EM wave the amplitude of magnetic field H0 and the amplitude of electric field E0 at any place are related as :-
In a step-up transformer, the turn ratio is 1 : 2. A Leclanche cell (e.m.f. 1.5V) is connected across the primary. The voltage developed in the secondary would be :-
In a dc motor, induced e.m.f. will be maximum :-
If the force between the electron in the first Bohr orbit and the nucleus (proton) in hydrogen atom is F, then the force between them when the electron is in the second orbit is :-
The value of current through 20Ω resistor is :-
Two cells of e.m.f. s E1 and E2 and of negligible internal resistances are connected with two variable resistors as shown in Fig. When the galvanometer shows no deflection, the values of the resistances are P and Q. What is the value of the ratio E2/E1?
In the circuit shown in the figure, C = 6 µF. The charge stored in the capacitor of capacity C is :-
Two capacitors C1 and C2 = 2C1 are connected in a circuit with a switch between them as shown in the figure. Initially the switch is open and C1 holds charge Q. The switch is closed. At steady state, the charge on capacitors will be :-
A charged particle is moving in a circular orbit of radius 6 cm with a uniform speed of 3 × 106 m/s under the action of a uniform magnetic field 2 × 10-4 Wb/m2 which is at right angles to the plane of the orbit. The charge to mass ratio of the particle is :-
(a) 5 × 109 C/kg
(b) 2.5 × 1011 C/kg(c) 5 × 1011 C/kg
(d) 5 × 1012 C/kg
A copper wire of resistance 10Ω is in the form of a perfect circle. Two points A and B on it are connected to a battery of emf 5 V and internal resistance 0.5 Ω. The two segments of the circle have lengths in the ratio 2 : 3. The net magnetic induction at the centre of the circle is :-
Two long straight conductors with currents I1 and I2 are placed along X and Y-axes. The equation of locus of points of zero magnetic induction is :-