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This mock test of Sample BITSAT Physics Test for JEE helps you for every JEE entrance exam.
This contains 40 Multiple Choice Questions for JEE Sample BITSAT Physics Test (mcq) to study with solutions a complete question bank.
The solved questions answers in this Sample BITSAT Physics Test quiz give you a good mix of easy questions and tough questions. JEE
students definitely take this Sample BITSAT Physics Test exercise for a better result in the exam. You can find other Sample BITSAT Physics Test extra questions,
long questions & short questions for JEE on EduRev as well by searching above.

QUESTION: 1

If E₀ represents the peak value of the voltage in an A.C. circuit, the r.m.s. value of the voltage will be

Solution:

For an a.c. circuit

Er.m.s=Eo/âˆš2

So D is the answer.

QUESTION: 2

After two hours, one sixteenth of the starting amount of a certain radioactive isotope remained undecayed. The half of the isotope is

Solution:
Use the equation of first order reaction lnCt=lnC0-kt. where Ct is the concentration at given time andC0 is the initial concentration and t is the given time here Ct=C0/16 and t=2 on solving you will get k =2ln2 and half life =ln2/k on solving you will get t=30 minutes

QUESTION: 3

A freshly prepared radioactive sample of half-lif 1 hour emits radiations that are 128 times as intense as the permissible safe limit. The minimum time after which this sample can be safely used is

Solution:

QUESTION: 4

In a Meter-bridge with a standard resistance of 5 Ω in the left gap, the ratio of balancing lengths on the Meter bridge wire is 2:3. The unknown resistance is

Solution:

QUESTION: 5

A uniform resistance wire of length L and diameter d has a resistance R. Another wire of same material has length 4 L and diameter 2 d, the resistance will be

Solution:

QUESTION: 6

What is the stopping potential when the metal with work function 0.6 eV is illuminated with the light of 2 eV?

Solution:

where Vo is the Stopping potential.

QUESTION: 7

Which of the following is a correct statement?

Solution:

QUESTION: 8

During a current change from 2 A to 4 A in 0.05 second, 8 V of emf is developed in a coil. the coefficient of self-induction is

Solution:

QUESTION: 9

Five equal capacitors connected in series have a resultant capacitance of 4 μ F. The total energy stored in these, when these are connected in parallel and charged to 400V is

Solution:

QUESTION: 10

A body of 2 gm carrying a charge of 0·1 μ C starts from rest at the positive plate and moves to the negative plate of a parallel plate condenser connected to a voltage supply of 30KV. The final velocity is

Solution:

QUESTION: 11

A heavy uniform chain lies on a horizontal table-top. If the coefficient of friction between the chain and table surface is 0.25, then the maximum fraction of length of the chain, that can hang one edge of the table is

Solution:

QUESTION: 12

Who among the following gave first the experimental value of G ?

Solution:

QUESTION: 13

In a closed room, heat transfer takes place by

Solution:
Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated.

QUESTION: 14

In thermal equilibrium, the average velocity of gas molecules is

Solution:

QUESTION: 15

If 10% of the current passes through a moving coil galvanometer of resistance 99 ohm, then the shunt resistance will be

Solution:

QUESTION: 16

Ferromagnetic materials used in a transformer must have

Solution:

QUESTION: 17

A liquid flows through a pipe of non-uniform cross-section. If A₁ and A₂ are the cross-sectional areas of the pipe at two points, the ratio of velocities of the liquid at these points will be

Solution:

QUESTION: 18

In a liquid flowing through a pipe, the pressure difference between its ends is made half and radius is doubled. If the initial rate of flow of liquid was Q, then new rate of flow of liquid through the pipe is

Solution:

QUESTION: 19

How much force is required to produce an elongation of 0.2% in the length of a brass wire of diameter 0.6 mm? (Take Young's modulus for brass = 0.9*10^{11} N-m^{⁻2})

Solution:

QUESTION: 20

A ball is dropped from a bridge at a height of 176.4 m over a river. After 2 s, a second ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously ?

Solution:

QUESTION: 21

A car is moving at a speed of 72 km−h^{⁻1}. The diameter of its wheels is 0.5 m. If the wheels are stopped in 20 rotations by applying brakes, then the angular retardation produced by the brakes is

Solution:

QUESTION: 22

Two bodies are projected with the same velocity. If one is projected at an angle of 30^{o} and the other at an angle of 60^{o} to the horizontal, the ratio of the maximum heights reached is

Solution:

QUESTION: 23

A body of mass 2 kg is moving with a velocity of 8m/s on a smooth surface.if it is to be brought to rest in 4 seconds,then the force to be applied is?

Solution:

QUESTION: 24

The ability of eye to focus near as well as distant objects is called

Solution:

QUESTION: 25

A child is sitting on a swing. Its minimum and maximum heights from the ground are 0.75 m and 2m respectively. Its maximum speed will be

Solution:

Drop in P.E. = maximum K.E.

QUESTION: 26

When a force of 0.1 N is applied, the spring is stretched by 1.5 cm. The spring is cut into three parts and one part is stretched by 3 cm. Find the force required for doing so.

Solution:

QUESTION: 27

A mass is revolving in a circle which is in the plane of paper. The direction of angular acceleration is

Solution:

QUESTION: 28

An air bubble is contained inside water. It behaves as a

Solution:

QUESTION: 29

Solution:

QUESTION: 30

A cylinder of mass 500 g and radius 10 cm has moment of inertia about its central axis in kg-m^{2} is equal to

Solution:

QUESTION: 31

A battery of e.m.f. 10 V and internal resistance 0.5 ohm is connected across a variable resistance R. The value of R for which the power delivered in it is maximum is given by

Solution:

QUESTION: 32

An ideal monoatomic gas at 27^{o}C is compressed adiabatically to 8/27 times of its original volume. The increase in temperature of the gas is

Solution:

QUESTION: 33

In a thermodynamic system, ∆u represents an increase in its internal energy and ∆W work done by the system. Which of the following statements is true?

Solution:

QUESTION: 34

A suitable unit for gravitational constant is

Solution:

QUESTION: 35

If the ratio of intensities of two waves causing interference be 9:4, then the ratio of maximum and minimum intensities will be

Solution:

QUESTION: 36

Laser light is considered to be coherent as it consists of

Solution:

QUESTION: 37

A tuning fork whose frequency as given by manufacturer is 512 Hz is being tested with an accurate oscillator. It is found that the fork produces a beat of 2 Hz when oscillator reads 514 Hz but produces a beat of 6 Hz when oscillator reads 510 Hz. The actual frequency of fork is

Solution:

QUESTION: 38

The tension in a piano wire is 10N. What should be the tension in the wire to produce a note of double the frequency

Solution:

QUESTION: 39

A block of mass 10 kg is moving in x-direction with a constant velocity of 10 m−s^{⁻1}. It is subjected to a retarding force F = 0.1x J-m^{⁻1} during its travel from x = 20 m to x = 30 m. Its final kinetic energy will be

Solution:

QUESTION: 40

What remains constant in the field of central force

Solution:

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