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BITSAT Physics Test - 5


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40 Questions MCQ Test BITSAT Mock Tests Series & Past Year Papers | BITSAT Physics Test - 5

BITSAT Physics Test - 5 for JEE 2023 is part of BITSAT Mock Tests Series & Past Year Papers preparation. The BITSAT Physics Test - 5 questions and answers have been prepared according to the JEE exam syllabus.The BITSAT Physics Test - 5 MCQs are made for JEE 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for BITSAT Physics Test - 5 below.
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BITSAT Physics Test - 5 - Question 1

Armature current in D.C. motor will be maximum when

BITSAT Physics Test - 5 - Question 2

The ratio of the radii of two nuclei of mass numbers A₁ and A₂ will be

BITSAT Physics Test - 5 - Question 3

After 280 days, the activity of a radioactive sample is 6000 dps. The activity reduces to 3000 dps after another 140 days. The initial activity of the sample in dps is

BITSAT Physics Test - 5 - Question 4

A dry cell has an e.m.f. of 1.5 V and an internal resistance of 0.05 Ω. The maximum current obtainable from this cell for a very short time interval is

BITSAT Physics Test - 5 - Question 5

Terminal potential difference of battery depends on

BITSAT Physics Test - 5 - Question 6

Particle nature is shown by

BITSAT Physics Test - 5 - Question 7

Which of the following statement is not correct

BITSAT Physics Test - 5 - Question 8

When a.d.c. motor operates at 200 V, its initial current is 5 A, but when it runs at maximum speed, the current is only 3 A. What is its back emf ?

BITSAT Physics Test - 5 - Question 9

Inside a hollow charged spherical conductor, the potential at every point

BITSAT Physics Test - 5 - Question 10

If identical charges -q are placed at each corner at each corner of a cube of side b, then electric potential energy of charge +q, which is placed at centre of the cube, will be

BITSAT Physics Test - 5 - Question 11

A motorcyclist of mass m is to negotiate a curve of radius r with a speed ν. The minimum value of the coefficient of friction so that this negotiation may take place safely, is

BITSAT Physics Test - 5 - Question 12

An earth satellite of mass m revolves in a circular orbit at a height h from the surface of the earth. R is the radius of the earth and g is acceleration due to gravity at the surface of the earth. The velocity of the satellite in the orbit is given by

BITSAT Physics Test - 5 - Question 13

A perfect black body emits radiation at temperature 300 K. If it radiates 16 times this amount, then its temperature will be

BITSAT Physics Test - 5 - Question 14

The r.m.s. velocity of a gas molecules is 100√3 m−s⁻1. The most probable velocity of the molecules is

BITSAT Physics Test - 5 - Question 15

A galvanometer having a resistance of 8 ohm is shunted by a wire of 2 ohm. If the total current is 1 ampere, the part of it passing through the shunt will be

BITSAT Physics Test - 5 - Question 16

A tangent galvanometer is used to measure

BITSAT Physics Test - 5 - Question 17

A horizontal pipe line carries water in a streamline flow. At a point along the pipe where cross-sectional area is 10 cm2, the velocity of water is 1 m-s⁻1 and pressure is 2000 Pa. The pressure of water, at another point where cross-sectional area is 5 cm2, is (Density of water = 1000 kg-m⁻3)

BITSAT Physics Test - 5 - Question 18

Hydraulic press is based on

BITSAT Physics Test - 5 - Question 19

A wire can be broken by applying a load of 200 N.The force required to break another wire of the same length and same material, but double in diameter, is

BITSAT Physics Test - 5 - Question 20

A stone dropped from a building of height h and it reaches after t seconds on earth. From the same building if two stones are thrown (one upwards and other downwards) with the same velocity u and they reach the earth surface after t₁ and t₂ seconds respectively, then

BITSAT Physics Test - 5 - Question 21

In a vertical circle of radius r, at what point in its path a particle has tension equal to zero

BITSAT Physics Test - 5 - Question 22

Four bodies P, Q, R and S are projected with equal velocities having angles of projection 15o, 30o, 45o and 60o with the horizontal respectively. The body having shortest range is

BITSAT Physics Test - 5 - Question 23

A diwali rocket is ejecting 0.05 kg of gases per second at a velocity of 400 m/sec. The accelerating force on the rocket is

BITSAT Physics Test - 5 - Question 24

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting, calculate the focal length of objective

BITSAT Physics Test - 5 - Question 25

Which of the following equation does not represent a simple harmonic motion ?

BITSAT Physics Test - 5 - Question 26

A hollow sphere is filled with water through a small hole in it. It is hung by a long thread and made to oscillate. As the water slowly flows out of the hole at the bottom, the period of oscillation will

BITSAT Physics Test - 5 - Question 27

An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm. The image produced is

BITSAT Physics Test - 5 - Question 28

A flywheel starts from rest and gains a speed of 540 rev-min⁻1 in 6 s. Angular acceleration of the flywheel will be

BITSAT Physics Test - 5 - Question 29

A solid cylinder 30 cm in diameter at the top of an inclined plane 2.0 m high is released and rolls down the incline without loss of energy due to friction. Its linear speed at the bottom is

BITSAT Physics Test - 5 - Question 30

A Carnot engine used first an ideal monoatomic gas and then an ideal diatomic gas. If the source and sink temperature are 411oC and 69oC respectively and the engine extracts 1000 J of heat in each cycle, then area enclosed by the P-V diagram is

BITSAT Physics Test - 5 - Question 31

A simple harmonic oscillator has a mass m, amplitude A frequency n, displacement x and kinetic energy T. The equation T = 2 π 2 n 2 m A − x is dimensionally

BITSAT Physics Test - 5 - Question 32

When an unpolarized light of intensity I0 is incident on a polarizing sheet, the intensity of the light which does not get transmitted is

BITSAT Physics Test - 5 - Question 33

The moment of inertia of a body (initially at rest) about a given axis is 1.2 kg-m2. In order to produce a rotational kinetic energy of 1500 J, an angular acceleration of 25 rad-s-2 must be applied about that axis for a period of

Detailed Solution for BITSAT Physics Test - 5 - Question 33

BITSAT Physics Test - 5 - Question 34

Who was the first to demonstrate the phenomenon of interference of light?

BITSAT Physics Test - 5 - Question 35

A polyatomic gas (γ=4/3) is compressed to 1/8th of its volume adiabatically. If its initial pressure is P₀, its new pressure will be

BITSAT Physics Test - 5 - Question 36

Quality of sound depends upon

BITSAT Physics Test - 5 - Question 37

The two bulbs as in the above question are connected in series to a 200 volt line. Then

BITSAT Physics Test - 5 - Question 38

If an open pipe of length l vibrates in fundamental mode, then pressure variation is maximum at

BITSAT Physics Test - 5 - Question 39

A body of mass 40 kg having velocity 4 m/s collides with another body of mass 60 kg having velocity 2 m/s. If the collision is inelastic, then loss in kinetic energy will be

BITSAT Physics Test - 5 - Question 40

A mass of M kg is suspended by a weightless string. The horizontal force that is required to displace it until the string makes an angle of 45o with the initial vertical direction is

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