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The physical quantity having the dimensions \([M^{-1}L^{-3}T^3A^2]\) is:
1. resistance
2. resistivity
3. electrical conductivity
4. electromotive force

In the circuit shown the value of \(I\) in ampere is: 
   
1. \(1\)
2. \(0.60\)
3. \(0.4\)
4. \(1.5\)

The specific charge of a proton is \(9.6\times10^7~\mathrm{C/kg}\). The specific charge of an alpha particle will be:
1. \(9.6\times10^7~\mathrm{C/kg}\)
2. \(19.2\times10^7~\mathrm{C/kg}\)
3. \(4.8\times10^7~\mathrm{C/kg}\) 
4. \(2.4\times10^7~\mathrm{C/kg}\)

If \(\lambda_1 ~\mathrm{ and}~ \lambda_2\) are the wavelengths of the first members of the Lyman and Paschen series respectively, then  \(\lambda_1 : \lambda_2\) is:
1. \(1:3\)
2. \(1:30\)
3. \(7:50\)
4. \(7:108\)

Activity of a radioactive sample decreases to \(\frac{1}{3}\)^rd of its original value in \(3\) days. Then, in \(9\) days its activity will become:

A tuning fork A produces \(4\) beats/s with another tuning fork B of frequency \(320\) Hz. On filing one of the prongs of A, \(4\) beats are again heard when sounded with the same fork B. Then, the frequency of fork A before filing is:
1. \(328\) Hz
2. \(316\) Hz
3. \(324\) Hz
4. \(320\) Hz

If there were no gravity, which of the following would not be there for a fluid?
1. Viscosity
2. Surface tension
3. Pressure
4. Archimedes upward thrust

A choke is preferred to resistance for limiting current in AC circuit because:

The velocity-time curve for a body projected vertically upwards is:
1. parabola
2. ellipse
3. hyperbola
4. straight line

If \(r_1\) and \(r_2\) are the radii of the atomic nuclei of mass numbers \(64\) and \(125\) respectively, then the ratio \(\frac{r_1}{r_2}\) is:
1. \(\frac{64}{125}\)
2. \(\sqrt{\frac{64}{125}}\)
3. \(\frac54\)
4. \(\frac45\)

The ionization energy of \(\mathrm{Li^{2+}}\) is equal to:
1. \(9hcR \)
2. \(6hcR\)
3. \(2hcR\)
4. \(hcR\)

A current of \(5\) A is passing through a metallic wire of cross-sectional area \(4\times10^{-6}\) m². If the density of charge carriers of the wire is \(5\times10^{26}\) m^-3, then the drift velocity of the electrons will be:
1. \(1\times 10^2\) m/s
2. \(1.56 \times10^{-2}\) m/s
3. \(1.56 \times10^{-3}\) m/s
4. \(1\times 10^{-2}\) m/s

The numerical ratio of displacement to the distance covered is always:

The principle of LASER action involves:

A train is moving towards the east and a car is along the north, both at the same speed. The observed direction of the car to the passenger and the train is:
1. east-north direction
2. west-north direction
3. south-east direction
4. none of the above

Which of the following is a unipolar transistor?
1. p-n-p transistor
2. n-p-n transistor
3. field effect transistor
4. point contact transistor

A solid sphere and a hollow sphere of the same material and of the same size can be distinguished without weighing:

Point masses \(1,\) \(2,\) \(3\) and \(4\) kg are lying at the points \((0,0,0),\) \((2,0,0),\) \((0,3,0)\) and \((-2,-2,0)\) respectively. The moment of inertia of this system about the X-axis will be:
1. \(43~\mathrm{kg-m^2}\) 
2. \(34~\mathrm{kg-m^2}\) 
3. \(27~\mathrm{kg-m^2}\) 
4. \(72~\mathrm{kg-m^2}\) 

The radius of gyration of a body about an axis at a distance \(6~\mathrm{cm}\) from its centre of mass is \(10~\mathrm{cm}\). Then, its radius of gyration about a parallel axis through its centre of mass will be:
1. \(80~\mathrm{cm}\) 
2. \(8~\mathrm{cm}\) 
3. \(0.8~\mathrm{cm}\) 
4. \(80~\mathrm{m}\) 

A galvanometer can be changed into an ammeter by using:

A bullet of mass \(20\) g and moving with \(600\) m/s collides with a block of mass \(4\) kg hanging with the string. What is the velocity of a bullet when it comes out of the block, if the block rises to height \(0.2\) m after collision?
1. \(200\) m/s
2. \(150\) m/s
3. \(400\) m/s
4. \(300\) m/s

Voltage in the secondary coil of a transformer does not depend upon:

In Carnot, engine efficiency is \(40\text{%}\), at hot reservoir temperature \(T\). For \(50\text{%}\) efficiency, what will be the temperature of the hot reservoir?
1. \(\frac TS\)
2. \(\frac{2T}{5}\)
3. \(6T\)
4. \(\frac{6T}{5}\)

A ball of mass \(2\) kg moving with velocity \(3\) m/s, collides with spring of natural length \(2\) m and force constant \(144\) N/m. What will be the length of the compressed spring?
1. \(2\) m
2. \(1.5\) m
3. \(1\) m
4. \(0.5\) m

A proton moving vertically downward enters a magnetic field pointing towards the north. In which direction the proton will deflect?
1. east
2. west
3. north
4. south

Induced emf in the coil depends upon:

X-rays are used in determining the molecular structure of crystalline because:

Light of frequency \(v\) falls on the material of threshold frequency \(v_0.\) Maximum kinetic energy of the emitted electron is proportional to:
1. \(v-v_0\)
2. \(v\)
3. \(\sqrt{v-v_0}\)
4. \(v_0\)

A light moves from denser to rarer medium, which of the following is correct?

Which one of the following statements is true?

A metro train starts from rest and in \(5\) s achieves \(108\) km/h. After that it moves with a constant velocity and comes to rest after travelling \(45\) m with uniform retardation. If total distance travelled is \(395\) m, then total time of travelling is:
1. \(12.2\) s
2. \(15.3\) s
3. \(9\) s
4. \(17.2\) s

A closed organ pipe of length \(20\) cm is sounded with a tuning fork in resonance. What is the frequency of the tuning fork? (\(v=332\) m/s)
1. \(300\) Hz
2. \(350\) Hz
3. \(375\) Hz
4. \(415\) Hz

The temperature of the sun can be found out by using:

The pressure of an ideal gas is increased by keeping temperature constant. What is the effect on the kinetic energy of molecules?

Kirchhoff’s law of junction, \(\sum I = 0,\) is based on:

A transverse wave is expressed as, \(y=y_0\sin(2\pi ft).\) For what value of \(\lambda\), maximum particle velocity equals 4 times the wave velocity?
1. \(\frac{y_0\pi}{2}\)
2. \(2y_0\pi\)
3. \(y_0\pi\)
4. \(\frac{y_0 \pi}{4}\)

For a given lens, the magnification was found to be twice as large as when the object was \(0.15\) m distant from it as when the distance was \(0.2\) m. The focal length of the lens is:
1. \(1.5~\mathrm{m}\) 
2. \(0.20\mathrm{~m}\) 
3. \(0.10~\mathrm{m}\) 
4. \(0.05~\mathrm{m}\) 

When sound waves travel from air to water which one of the following remains constant?
1. time period
2. frequency
3. velocity
4. wavelength

The bulk modulus for an incompressible liquid is:
1. zero
2. unity
3. infinity
4. between \(0\) and \(1\)

Diluting 10^-6 M NaOH 100 times results in a pH of the diluted base that falls within the following ranges:
1. Between 7 and 8
2. Between 5 and 6
3. Between 6 and 7
4. Between 10 and 11

An sp³-hybrid orbital contains:
1. $\frac{1}{4}$s-character
2. $\frac{1}{2}$s-character
3. $\frac{2}{3}$s-character
4. $\frac{3}{4}$s-character

Leaching is a process of:
1. reduction
2. concentration
3. refining
4. oxidation

Electrolysis of fused NaCl will give:
1. Na
2. NaOH
3. NaClO
4. $NaCl{O}_3$

Which of the following fluorides does not exist?
1. $N{F}_5$
2. $P{F}_5$
3. $As{F}_5$
4. $Sb{F}_5$

Red lead is:
1. PbO
2. $Pb{O}_3$
3. $P{b}_3{O}_4$
4. $P{b}_2{O}_3$

Hybridisation states of C in CH₃⁺ and CH₃^- are:
1. $s{p}^2,s{p}^3$
2. $s{p}^3,s{p}^2$
3. $sp,s{p}^2$
4. $s{p}^2,sp$

Which one of the following complexes is outer orbital complex?
1. $\left[Co\right(N{H}_3{)}_6{]}^{3+}$
2. $\left[Mn\right(CN{)}_6{]}^{4-}$
3. $\left[Fe\right(CN)6{]}^{4-}$
4. $\left[Ni\right(NH3{)}_6{]}^{2+}$

A solution made by dissolving 40 g NaOH in 1000 g of H₂O is:
1. 1 molar
2. 1 normal
3. 1 molal
4. None of these

0.1 mol HCl is equal to:
1. 3.65 g
2. 36.5 g
3. 18 g
4. 1.8 g

Which will liberate bromine from a solution of potassium bromide?
1. $l_2$
2. $C{l}_2$
3. $S{O}_2$
4. Hl

Which of the following has the maximum number of unpaired electrons?
1. $v^{3+}$
2. $F{e}^{2+}$
3. $M{n}^{2+}$
4. $C{u}^{+}$

The geometry of XeF₆ is:
1. planar hexagon
2. regular octahedron
3. distorted octahedron
4. square bipyramid

The correct statement with regard to H₂⁺ and H₂^- is:
1. both ${H_2}^{+} and {H_2}^{-}$ are equally stable
2. both ${H_2}^{+} and {H_2}^{-}$ do not exist
3. ${H_2}^{-}$ is more stable than ${H_2}^{+}$
4. ${H_2}^{+}$ is more stable than ${H_2}^{-}$

2g of a radioactive sample having a half-life of 15 days was synthesised on 1st Jan 2009. The amount of the sample left behind on 1st March 2009 (including both the days) is:
1. 0 g
2. 0.125 g
3. 1 g
4. 0.5 g

The rate equation for a reaction, 
 
is . If the initial concentration of the reactant is a mol dm^-3, the half-life period of the reaction is:
1. $\frac{a}{2k}$
2. $\frac{k}{a}$
3. $\frac{a}{k}$
4. $\frac{2a}{k}$

For the reaction, 
 
at 373 K and 1 atm pressure:
1. $∆H=0$
2. $∆E=0$
3. $∆H=T∆S$
4. $∆H=∆E$

In electrophilic aromatic substitution reaction, the nitro group is meta directing because it:
1. decreases electron density at ortho and para positions
2. decreases electron density at meta position
3. increases electron density at meta position
4. increases electron density at ortho and para positions

The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with:
1. $PC{l}_3$
2. $PC{1}_5$
3. $SOC{l}_2$ in the presence of pyridine
4. dry HCl in the presence of anhydrous $ZnC{l}_2$

The compound which is formed during the dry distillation of a mixture of calcium formate and calcium acetate is:
1. ethanal
2. propanal
3. propanone
4. ethanol

The compound which forms acetaldehyde when heated with dilute NaOH, is:
1. 1, 1-dichloroethane
2. 1, 1, 1-trichloroethane
3. 1-chloroethane
4. 1, 2-dichloroethane

The one which has the least iodine value is:
1. sunflower oil
2. ginger oil
3. ghee
4. groundnut oil

IUPAC name of (CH₃)₃CCl is:
1. $\eta$-butyl chloride
2. 3-chloro butane
3. 2-chloro-2-methylpropane
4. t-butyl chloride

The condensation polymer among the following is:
1. rubber
2. protein
3. PVC
4. polythene

In which of the following, NH₃ is not used?

Argon is used:
1. in filling airships
2. to obtain low temperature
3. in high-temperature welding
4. in radiotherapy for treatment of cancer

Hyperconjugation is most useful for stabilising which of the following carbocations?
1. Neo-pentyl
2. Tert-butyl
3. Iso-propyl
4. Ethyl

Which of the following forms of isomerism arises due to the restricted bond rotation?
1. Metamerism
2. Optical isomerism
3. Position isomerism
4. Geometrical isomerism

Amine that cannot be prepared by Gabriel phthalimide synthesis is:
1. aniline
2. benzylamine
3. methylamine
4. iso-butylamine

Lactose is made of:
1. $\alpha$-D-glucose only
2. $\alpha$-D-glucose and $\beta$-D-glucose
3. $\alpha$-D-galactose and $\beta$-D-glucose
4. $\beta$-D-galactose and $\beta$-D-glucose

Cetyltrimethyl ammonium bromide is a popular:
1. anionic detergent
2. cationic detergent
3. non-ionic detergent
4. sweetener

The number of electrons, neutrons and protons in a species are equal to 10, 8 and 8 respectively. The proper symbol of the species is:
1. ${}_8{}^{16}O^{2-}$
2. ${}_8{}^{18}O$
3. ${}_{10}{}^{18}Ne$
4. ${}_8{}^{16}N{e}^{2-}$

56 g of nitrogen and 96 g of oxygen are mixed isothermally and at a total pressure of 10 atm. The partial pressures of oxygen and nitrogen (in atm) are respectively:
 

Which of the following undergoes reduction with hydrogen peroxide in an alkaline medium?
1. $M{n}^{2+}$
2. $l_2$
3. $PbS$
4. $F{e}^{2+}$

The metal that produces red-violet colour in the non-luminous flame is:
1. Ba
2. Ag
3. Rb
4. Pb

According to the first law of thermodynamics which of the following quantities represents the change in a state function?
1. $q_{rev}$
2. $q_{rev}-W_{rev}$
3. $\frac{q_{rev}}{W_{rev}}$
4. $q_{rev}+W_{rev}$

The maximum oxidation state exhibited by actinide ions is:
1. +5
2. +4
3. +7
4. +8

The dispersed phase and dispersion medium in soap lather are respectively:
1. gas and liquid
2. liquid and gas
3. solid and gas
4. solid and liquid

The expression for the solubility product of Ag₂CO₃ will be:
1. $K_{sp}=s^2$
2. $K_{sp}=4s^3$
3. $K_{sp}=27s^4$
4. $K_{sp}=s$

A 600 W mercury lamp emits monochromatic radiation of wavelength 331.3 nm. How many photons are emitted from the lamp per second? 
(h = 6.626 x 10^-34 J-s; velocity of light = 3 x 10⁸ ms^-1)
1. $1\times {10}^{19}$
2. $1\times {10}^{20}$
3. $1\times {10}^{21}$
4. $1\times {10}^{23}$

In mammals, histamine is secreted by:
1. fibroblasts
2. histocytes
3. lymphocytes
4. mast cells

The layer of cells that secrete enamel of a tooth is:
1. denoblast
2. ameloblast
3. osteoblast
4. odontoblast

Which important greenhouse gas, other than carbon dioxide, is being produced from the agricultural fields?
1. Arsine
2. Sulphur dioxide
3. Ammonia
4. Nitrous oxide

The exchange of gases in the alveoli of the lungs takes place by:
1. osmosis
2. simple diffusion
3. passive transport
4. active transport

Carbon monoxide is a pollutant because it:
1. reacts with oxygen
2. inhibits glycolysis
3. reacts with haemoglobin
4. makes nervous system inactive

Total number of bones in the hind limb of a man is:
1. 14
2. 21
3. 24
4. 30

Calcitonin is a thyroid hormone, which:
1. elevates potassium level in blood
2. lowers calcium level in blood
3. elevates calcium level in blood
4. has no effect on calcium

A condition of failure of the kidney to form urine is called:
1. deamination
2. entropy
3. anuria
4. None of these

Solenocytes are the main excretory structures in:
1. annelids
2. molluscs
3. echinodermates
4. Platyhelminthes

A woman with two genes (one on each X-chromosome) for haemophilia and one gene for colour blindness on the X-chromosome marries a normal man. How will the progeny be?
 

The functional unit of contractile system in striated muscle is:

The contraction of the gall bladder is due to:
1. gastrin
2. secretin
3. cholecystokinin
4. enterogastrone

The diversity in the type of beaks of finches adapted to different feeding habits on the Galapagos islands, as observed by Darwin, provides evidence for:
1. origin of species by natural selection
2. intraspecific variations
3. intraspecific competition
4. interspecific competition

The most important component of the oral contraceptive pills is:
1. progesterone
2. growth hormone
3. thyroxine
4. luteinising hormone

Sympathetic nervous system induces:
1. heartbeat
2. secretion of digestive juice
3. secretion of saliva
4. All of the above

The middle piece of the sperm contains:
1. proteins
2. centriole
3. nucleus
4. mitochondria

The term 'aquaculture' means:
1. aspergillosis
2. inland fisheries
3. marine fisheries
4. Both (2) and (3)

Active immunity means:
1. resistance developed after disease
2. increasing quantity of blood
3. resistance developed before disease
4. increasing rate of heart-beat

The canal system is a characteristic feature of:
1. echinoderms
2. helminths
3. coelenterates
4. sponges

Which cranial nerve has the highest number of branches?
1. Facial nerve
2. Trigeminal
3. Vagus nerve
4. None of these

The problem due to Rh^- factor arises when the blood of two (Rh⁺ and Rh^- )mix up:
1. during pregnancy
2. through transfusion
3. in a test tube
4. Both A and B

Which of the following is mismatched?
1. Vitamin-K-Beri-Beri
2. Vitamin-D-Rickets
3. Vitamin-C-Scurvy
4. Vitamin-A-Xerophthalmia

The joint between atlas and axis is called:
1. pivot joint
2. hinge joint
3. saddle joint
4. angular joint

The blood group with antibody-a and antibody-b is:
1. B
2. A
3. O
4. AB

Rate of heartbeat is determined by:
1. Purkinje fibres
2. papillary muscles
3. SA-node
4. AV-node

The junction between the axon of one neuron and the dendrite of the next is called:
1. junction point
2. a synapse
3. a joint
4. constant bridge

Chondrichthyes is characterised by:
1. placoid scale
2. ventral mouth
3. ctenoid scale and ventral mouth
4. placoid scale and ventral mouth

Secondary body cavity with segmented mesodermal lining is called:
1. haemocoel
2. neurocoele
3. true coelom
4. pseudocoelom

Stratified epithelium is found in:
1. seminiferous tubule
2. fallopian tube
3. nasal cavity
4. kidney tubules

Dead space air in man is:
1. 500 mL
2. 150 mL
3. 250 mL
4. 1.5 L

Vertebrate brain differentiates from:
1. endoderm
2. mesoderm
3. ectoderm
4. blastoderm

Animals of class-Mammalia have:
1. seven cervical vertebrae
2. seven cranial nerve
3. single ventricular chamber
4. fourteen cervical vertebrae

Vaccine for tuberculosis is known as:
1. PAS vaccine
2. BCG vaccine
3. OPV
4. OPT

Sir Godfrey Hounsfield developed the diagnostic technique of:
1. CT scanning
2. MRI
3. Endoscopy
4. Bronchoscopy

Alcoholism may lead to:
1. skin cancer
2. liver cirrhosis
3. viral disease
4. eye infections

The basic unit of classification is:
1. species
2. genus
3. family
4. phylum

Age of fishes is also known as:
1. Permian Era
2. Silurian Era
3. Devonian Era
4. Ordovician Era

A hereditary disease which is never passed on from father to son is:
1. X-chromosomal linked disease
2. Autosomal linked disease
3. Y-chromosomal linked disease
4. None of the above

One animal that does not perform locomotion is:
1. Sycon
2. Nereis
3. Sepia
4. Euglena

Amount of CO₂ in expired air is about:
1. 0.04%
2. 0.03%
3. 4.5%
4. 21%

The codon for anticodon 3'-UUUA-5' is:
1. 3'-AAU-5'
2. 5'-UAAA-3'
3. 5'-AAAU-3'
4. 3'-UAAU-5'

A kind of biotechnology involving manipulation of DNA is:
1. DNA replication
2. genetic engineering
3. denaturation
4. renaturation

Minamata disease is caused due to the presence of …………. in water.
1. cadmium
2. lead
3. arsenic
4. mercury

The phrase 'Omnis cellula-e-cellula' was given by:
1. Virchow
2. Pasteur
3. Schleiden
4. Brown

Intermediate community between pioneer and climax communities is called:
1. seral community
2. biotic community
3. temporary community
4. ecosure

Ten per cent law of energy transfer in a food chain is given by:
1. Schimper
2. Elton
3. Haeckel
4. Lindemann

Apoenzyme is:
1. protein
2. carbohydrate
3. vitamin
4. amino acid

Glycogenolysis involves:
1. conversion of sugar into glycogen
2. oxidation of sugar
3. conversion of glycogen into sugar
4. conversion of glycogen into fat

A polygenic inheritance in human beings is:
1. skin colour
2. sickle cell anaemia
3. colour blindness
4. phenylketonuria

Nucleic acid segment tagged with a radioactive molecule is called:
1. clone
2. probe
3. plasmid
4. vector

Powdery mildew of wheat is caused by a species of:
1. Puccinia
2. Erysphe
3. Ustilago
4. Albugo

Nucleic acid is absent in:
1. virus
2. viroid
3. prion
4. mycoplasma

In most fungi, the cell wall is chiefly made of:
1. cellulose
2. chitin
3. protein
4. lipid

Heterocysts are present in:
1. Riccia
2. Ulothrix
3. Albugo
4. Nostoc

Double fertilization occurs in:
1. Riccia
2. Pteridium
3. Cycas
4. Capsella

In Ruscus, the stem is a:
1. phyllode
2. cladode
3. offset
4. sucker

Catkin inflorescence is found in:
1. wheat
2. oat
3. mulberry
4. fig

Epigynous flowers are present in:
1. mustard
2. brinjal
3. China rose
4. cucumber

In Dianthus, placentation is:
1. basal
2. free central
3. axile
4. marginal

The term 'keel' is used for a special type of:
1. sepals
2. petals
3. stamens
4. carpels

Coffee and quinine are obtained from the:
1. Luguminosae
2. Asteraceae
3. Rubiaceae
4. Poaceae

Kranz anatomy can be observed in leaves of:
1. sorghum
2. spinach
3. mustard
4. tulip

The term 'bark' refers to:
 

Light reaction in stroma lamellae of the chloroplast results in the formation of:
1. $NADP{H}_2$
2. $ATP+NADP{H}_2$
3. ATP
4. $O_2$

In leaves of C₄ plants malic acid synthesis during CO₂ fixation occurs in:
1. bundle sheath
2. mesophyll cells
3. epidermal cells
4. guard cells

Membrane is absent in:
1. nucleus
2. nucleolus
3. vacuole
4. lysosome

The quiescent centre in root meristem serves as a:
 

An example of competitive inhibition of an enzyme is the inhibition of:
1. succinic dehydrogenase by malonic acid
2. cytochrome oxidase by cyanide
3. hexokinase by glucose-6-phosphate
4. carbonic anhydrase by carbon dioxide

Biological Oxygen Demand (BOD) is a measure of:
 

In prokaryotes, chromatophores are:
 

The Montreal Protocol refers to:
1. persistent organic pollutants
2. global warming and climate change
3. substances that deplete the ozone layer
4. biosafety of genetically modified organisms

In the sieve elements, which one of the following is the most likely function of P-proteins?
1. Depletion of callose on sieve plates
2. Providing energy for active translocation
3. Autolytic enzymes
4. Sealing off mechanism on wounding

Which one of the following precedes re-formation of the nuclear envelope during the M-phase of the cell cycle?
 

Viruses that infect bacterial multiplication and cause their lysis, are called:
1. Lysosomes
2. lipolytic
3. lytic
4. lysogenic

A plant requires magnesium (Mg) for:
1. holding cells together
2. protein synthesis
3. chlorophyll synthesis
4. cell wall development

Which one of the following pairs, is not correctly matched?
1. Abscisic acid- Stomatal closure
2. Gibberellic acid- Leaf falls
3. Cytokinin- Cell division
4. IAA- Cell wall elongation

Two cells A and B are contiguous. Cell A has an osmotic pressure of 10 atm, turgor pressure of 7 atm and diffusion pressure deficit of 3 atm. Cell B has an osmotic pressure of 8 atm, turgor pressure of 3 atm and diffusion pressure deficit of 5 atm. The result will be:
1. movement of water from cell B to A
2. no movement of water
3. equilibrium between the two
4. movement of water from cell A to B

The Okazaki fragments in DNA chain growth:
 

One gene-one enzyme relationship was established for the first time in:
1. Neurosporacrassa
2. Salmonella typhimurium
3. Escherichia coli
4. Diplococcuspneumoniae

In gymnosperms, the pollen chamber represents: