Official NEET UG 2002 Test

A mass is suspended separately by two different springs in successive order then time period is t₁ and t₂ respectively. If it is connected by both spring as shown in figure then time period is t₀ , the correct relation is : –

When an oscillator completes 100 oscillation its  amplitude reduced to \( \frac{1}{3}\) of initial value. What
will be its amplitude, when it completes 200 oscillation

A circular disc is to be made by using iron and aluminium so that it acquired maximum moment of inertia about geometrical axis. It is possible with : –

For the given incident ray as shown in figure, thecondition of total internal reflection of this raythe minimum refractive index of prism will be : –

The value of plank’s constant is : –

Displacement between max. P.E. position andmax. K.E. position for a particle excutingsimple harmonic motion is : –

A disc is rotating with angular speed ω. If a child sits on it, what is conserved : –

Which is having minimum wavelength : –

If particles are moving with same velocity, then De-Broglie wavelength is maximum for : –

When ultraviolet rays incident on metal platethen photoelectric effect does not occur, itoccurs by incidence of : –

What is the cause of “Green house effect” : –

Which of the following is not the property of cathode rays : –

A solid sphere of radius R is placed on smooth horizontal surface. A horizontal force ‘F’ is applied at height ‘h’ from the lowest point. Forthe maximum, acceleration of centre of mass, which is correct : –

Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye. The wavelength of light is 5000 Å :-

A bulb is located on a wall. Its image is to be obtained on a parallel wall with the help of convex lens. If the distance between parallel walls is ‘d’ then required focal length of lens placed in between the walls is : –

The Wien’s displacement law express relation between :

Which of the following is best close to an ideal black body : –

For a black body at temperature 727ºC, its radiating power is 60 watt and temperature of surrounding is 227ºC. If temperature of black body is changed to 1227ºC then its radiating power will be : –

Consider two rods of same length and different specific heats (S1, S2), conductivities (K1, K2) and area of cross-sections (A1, A2) and both having temperature T1 and T2 at their ends. If rate of loss of heat due to  conduction is equal, then :-

The efficiency of carnot engine is 50% and temperature of sink is 500K. If temperature of source is kept constant and its efficiency raised to 60%, then the required temperature of the sink will be : –

Unit of Stefan’s constant is : –

Number of atom per unit cell in B.C.C. : –

An object of mass 3kg is at rest. Now a force of F = jˆ t4iˆ t6 2 + is applied on the object then velocity of object at t = 3 second is : –

A body of mass m is placed on earth surface which is taken from earth surface to a height of h = 3R then change in gravitational potential energy is : –

A point P consider at contact point of a wheel on ground which rolls on ground without sliping then value of displacement of point P when wheel completes half of rotation (If radius of wheel is 1m) : –

A block of mass 10 kg placed on rough horizontal surface having coefficient of friction µ  = 0.5, if a horizontal force of 100 N acting on it then acceleration of the block will be : –

A lift of mass 1000 Kg which is moving with acceleration of 1 m/s2 in upward direction, then the tension developed in string which is connected to lift is : –

A particle (A) is droped from a height and another particle (B) is projected in horizontal direction with speed of 5 m/s from the same height then correct statement is : –

A rod of length is 3m and its mass acting per unit length is driectly proportional to distance x from one of its end then its centre of gravity from that end will be at :

If kinetic energy of a body is increased by 300% than percentage change in momentum will be

For a transistor\( \frac{I-c}{I_E}\) = 0.96, then current gain for common emitter configuration:-

A wave travelling in positive X-direction with A = 0.2 m velocity = 360 m/s and λ = 60 m, then correct expression for the wave is : –

A whistle revolves in a circle with angular speed ? = 20 rad/sec using a string of length 50cm .If the frequency of sound from the whistle is 385 Hz, then what is the minimum frequency

heard by an observer which is far away from the centre : – (Vsound = 340 m/s)

In a PN junction : –

The given truth table is for which logic gate : –

For the given circuit of P-N junction diode which is correct : –

Specific resistance of a conductor increases with :

For a series LCR circuit the power loss at resonance is :

Some charge is being given to a conductor. Then its potential : –

For a cell terminal P.D. is 2.2V when circuit is open and reduces to 1.8V when cell is connected to a resistance of R = 5?. Determine internal resistance of cell (r) is then : –

To convert a galvanometer into a voltmeter one should connect a : –

A capacitor of capacity C1 charged upto V volt and then connected to an uncharged capacitor C2. Then final P.D. across each will be

Identical charges (–q) are placed at each corner of a cube of side ‘b’ then electrical potential energy of charge (+q) which is placed at centre of cube will be

Which of the following are suitable for the fusion process : –

A charge ‘q’ moves in a region where electric field and magnetic field both exist, then force on it is : –

Two bar magnets having same geometry with magnetic moments M and 2M, are firstly placed in such a way that their similer poles are same side then its time period of osccilation is T1. Now the polarity of one of the magnet is reversed then time period of osccilation is T2,then : –

The velocity of electromagnetic wave is parallel to : –

A sample of radioactive element containing\( 4 × 10^16\) active nuclei. Half life of element is 10 days, then number of decayed nuclei after 30 days : –

A deuteron is bombarded on\(\) _8 O^16[/latex} nucleus then α-particle is emitted then product nucleus is –

\(_92 U^235, nucleus absorb a neutron and disintegratein _54 Xe^139, _38 Sr^94 \)and x So, What will be the product x : –

In Hydrozen atom, energy of first excited state is – 3.4 eV. Then find out KE of same orbit of Hydrogen atom : –

Reaction BaO2 (s)\(\rightleftharpoons\)BaO (s) + O2(g);?H = + ve. In equilibrium condition. Pressure of O2 is depens on : –

\(Solubility of MX_2 – type electrolytes is 0.5 × 10^–4 Mole/lit. then find out K_sp of elctrolytes \): –

1 M and 2.5 litre NaOH solution mixed with another 0.5 M and 3 litre NaOH solution. Then find out molarity of resultant solution : –

Which has highest pH : –

Solution of 0.1 N NH4OH and 0.1 N NH4Cl has pH 9.25, Then find out pkb of NH4OH : –

Vander waal’s real gas, act as a ideal gas, at which conditions : –

Unit of entropy is : –

In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true : –

2 mole of ideal gas at 27ºC temp. is expanded reversibly from 2 lit. to 20 lit. Find entropy change (R = 2 cal/mol K) : –

Heat of combustion ∆Hº for C(s), H2(g) and CH4(g) are – 94, – 68 and – 213 Kcal/mol. then ∆Hº for C(s) + 2H2(g) → CH4 (g) is : –

3A → 2B, rate of reaction \frac{+d[b]}{dt}[/latex]is equals to : –

2A → B + C

Which has maximum molecules : –

A solution contains non volatile solute of molecular mass M2. Which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure : –

Note : m2 → mass of solute

V → Volume of solution

p → Osmotic pressure

A solution containing components A and B follows Raoult’s law : –

Which reaction is not feasible : –

In electrolysis of NaCl when Pt electrode is taken then H2 is liberated at cathode while with Hg cathode it forms sodium amalgam : –

Which of the following statement is true : –

Which of the following order is wrong : –

General electronic configuration of lanthanides is

An atom has electronic configuration \(\) you will place it in which group : –

Which of the following is iso-electronic : –

Which of the following has pπ – dπ bonding

In \(\)NO3^–[/letex] ion number of bond pair and lonepair of electrons on nitrogen atom are : –

Which of the following shows maximum number of oxidation states :-

Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic with the spin of electron : –

The hypothetical complex chloro diaquatriammine cobalt (III) chloride can be represented

as :-

In the silver plating of copper, K[Ag(CN)2] is used instead of AgNO3. The reason is : –

CuSO4 when reacts with KCN forms CuCN,which is insoluble in water. It is soluble in excess of KCN, due to formation of the following complex : –

Position of non polar & polar part in miscell

Zn gives H2 gas with H2SO4 & HCl but not with HNO3 because :-

In borex bead test which compound is formed

IUPAC name of the following is CH2 = CH – CH2 – CH2 – C ≡ CH

\(CH_3MgBr\)

n-propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent : –

In the following reaction product ‘P’ is : –

Reactivity order of halides for dehydrohalogenation is : –

Monomer of is :-

In the above reaction product ‘P’ is : –

Z in the above reaction sequence is : –

When phenol is treated with CHCl3 and NaOH, the product formed is :-

The percentage of C, H and N in an organic compound are 40%, 13.3% and 46.7% respectively then emprirical formula is :

Enzymes are made up of : –

Geometrical isomers are differ in : –

When CH3CH2CHCl2 is treated with NaNH2, the product formed is : –

Which is not true statement : –

Significance of mimicry is –

Which of the following is correct match –

Some bacteria able to grow in Streptomycin containing medium due to –

In a population, unrestricted reproductive capacity is called as –

Which is a reducing sugar : –

Change in sequence of nucleotide in DNA is called as –

Reason of fast speciation in present day crop plants is –

Which of the following is important for speciation : –

Which of the following are homologous organs :-

Genetic drift oparates in : –

There is no life on moon due to the absence of –

According to fossils which discovered up to present time, origin and evolution of man was started from which country –

Impulse of heart beat originates from : –

Which cartilage is present on the end of long bones –

Melanin protect from :-

Continuous bleeding from an injured part of body is due to deficiancy of ; –

What will happen if ligaments are cut or broken : –

Which of the following statement is true for Lymph : –

Choose the correct sequence of stages of growth curve for Bacteria : –

The semilog of per minute growing bacteria is ploted against time. What will the shape of graph : –

Mainly which hormones control menstrual cycle in human beings :

When both ovary of rat are removed then which hormone is decreased in blood : –

Which of the following statement is correct for node of Ranvier of nerve : –

Which of the following is used in the treatment of Thyroid cancer : –

Hydrolytic enzymes which act on low pH are called as : –

Stool of a person contain whitish grey colour due to malfunction of which type of organ : –

Adrenalin direct affect on : –

Acromegaly is caused by : –

In fluid mosaic model of plasma membrane

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called : –

In which condition, the gene ratio remains constant for any species : –

Which of the following occurs more than one and less than five in a chromosome : –

Ribosomes are produced in :

Mitotic spindle is mainly composed of which protein :-

Cancerous cells can easily be destroyed by radiations due to : –

Which fungal disease spreads by seed and flowers : –

Sequence of which of the following is used to know the phylogeny : –

Which of the following secretes toxins during storage conditions of crop plants : –

Which of the following plants produces seeds but not flowers : –

In five kingdom system, the main basis of classification : –

In five kingdom system, the main basis of classification : –

Which of the following is without exception in Angiosperms : –

Which bacteria is utilized in Gober gas plant : –

During the formation of bread it becomes porous due to release of CO2 by the action of : –

In protozoa like Amoeba and Paramecium, a organ is found for osmoregulation which is : –

Which of the following is absent in polluted water : –

What is true for individuals of same species

In which era reptiles were dominated : –

Number of wild life is continuously decreasing.What is the main reason of this : –

In Angiosperms pollen tube liberate their male gametes into the : –

Maximum green house gas released by which country : –

What is the direction of micropyle in anatropous ovule :-

Which type of association is found in between entomophilous flower and pollinating agent : –

In which of the following notochord is present in embryonic stage: –

In Angiosperm all the four microspores of tetrad are covered by a layer which is formed by : –

In which of the animal dimorphic nucleus is found : –

Two different species can not live for long duration in the same niche or habitat. This law is : –

Which of the following is a correct pair : –

Bamboo plant is growing in a far forest then what will be the trophic level of it : –

Which pigment absorbs the red and farred light

Opening and closing of stomata is due to the : –

How many ATP molecules produced by Aerobic oxidation of one molecule of glucose : –

Choose the correct match Bladderwert, sundew, venus flytrap : –

In Photosynthesis energy from light reaction to dark reaction is transferred in the form of : –

Which of the following absorb light energy for photosynthesis : –

Seed dormancy is due to the : –

Edible part in mango is : –

What is true for cleavage : –

Geocarpic fruit is : –

In which animal nerve cell is present but brain is absent : –

In bacteria, plasmid is : –

Transformation experiment was first performed on which bacteria : –

Which statement is correct for bacterial transduction : –

Which steroid is used for transformation : –

Main function of lenticel is : –

Which of the following is the example of sex linked disease : –

Vessels are found in : –

In E. Coli, during lactose metabolism repressor binds to : –

Four radial V.B. are found in : –

Which of the following is the example of pleiotropic gene ; –

A gene said to be dominant if : –

Axillary bud and terminal bud derived from the activity of :-

If a diploid cell is treated with colchicine then it becomes : –

What is the reason of formation of embryoid from pollen grain in tissue culture medium

A plant of F1-generation with genotype “AABbCC”. On selfing of this plant what is the phenotypic ratio in F2-generation : –

In a DNA percentage of thymine is 20% then what is the percentage of

guanine :-

A diseased man marries a normal woman. They get three daughter and five sons. All the daughter were diseased and sons were normal. The gene of this disease is : –

Jacob and Monad studied lactose metabolism in E.Coli and proposed operon concept. Operon concept applicable for : –

Collagen is : –

Lipids are insoluble in water because lipids molecules are : –

Exon part of m-RNAs have code for : –