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SRMJEE Mock Test (Med) - 8 - JEE MCQ


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30 Questions MCQ Test - SRMJEE Mock Test (Med) - 8

SRMJEE Mock Test (Med) - 8 for JEE 2024 is part of JEE preparation. The SRMJEE Mock Test (Med) - 8 questions and answers have been prepared according to the JEE exam syllabus.The SRMJEE Mock Test (Med) - 8 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for SRMJEE Mock Test (Med) - 8 below.
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SRMJEE Mock Test (Med) - 8 - Question 1

The force required to keep a body in uniform circular motion is

SRMJEE Mock Test (Med) - 8 - Question 2

A step up transformer has transformation ratio of 3:2. What is the voltage in secondary if voltage in primary is 30 V

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SRMJEE Mock Test (Med) - 8 - Question 3

Half-life of a substance is 10 years. In what time, it becomes 1/4th part of the initial amount

SRMJEE Mock Test (Med) - 8 - Question 4

A heavy steel ball of mass greater than 1Kg moving with a speed of 2ms-1 collides head on with a stationary ping pong ball of mass less than 0.1g. The collision is elastic. After the collision the ping pong ball moves approximately with a speed

SRMJEE Mock Test (Med) - 8 - Question 5

Three resistors each of 2 ohm are connected together in a triangular shape. The resistance between any two vertices will be

SRMJEE Mock Test (Med) - 8 - Question 6

A source of light is placed at a distance of 1 m from a photocell and the cut off potential is found to be V₀. If the lamp is now replaced at a distance of 2 m, the cut off potential will become

SRMJEE Mock Test (Med) - 8 - Question 7

A copper wire of length 4.0m and area of cross-section 1.2 cm2 is stretched with a force of 4.8 X 103N. If Young's modulus for copper is 1.2 X 1011N/m2, the increase in the length of the wire will be

SRMJEE Mock Test (Med) - 8 - Question 8

The impurity atoms with which pure silicon should be doped to make a p-type semiconductor are those of

SRMJEE Mock Test (Med) - 8 - Question 9

A circular ring of area of 0.5 m2 is situated in a non-uniform magnetic field of 4 T changing in 2 s and making an angle of 60o with the magnetic field. The magnitude of the induced e.m.f. will be

SRMJEE Mock Test (Med) - 8 - Question 10

When a dielectric material is kept in between the plates of a condenser, its capacity

SRMJEE Mock Test (Med) - 8 - Question 11

A body of mass 60 kg is pushed with just enough force to start it moving on a rough surface with μ s = 0.5 and μ k = 0.4 and the force continues to act afterwards, the acceleration of the body is

SRMJEE Mock Test (Med) - 8 - Question 12

A geostationary satellite

SRMJEE Mock Test (Med) - 8 - Question 13

A heat flux of 4000 J/s is to be passed through a copper rod of length 10 cm and area of cross-section 100 cm2. The thermal conductivity of copper is 400 W/m oC. The two ends of this rod must be kept at a temperature difference of

SRMJEE Mock Test (Med) - 8 - Question 14

If an oxygen molecule and a hydrogen molecule is having same temperature, then the ratio of their average kinetic energies will be

SRMJEE Mock Test (Med) - 8 - Question 15

A ball of mass 150 g moving with an acceleration 20 m−s-1 is hit by a force, which acts on it for 0.1 s. The impulsive force is

SRMJEE Mock Test (Med) - 8 - Question 16

The magnetic dipole moment of a current loop is independent of

SRMJEE Mock Test (Med) - 8 - Question 17

The susceptibility of magnetic substance for different purposes is determined by its

SRMJEE Mock Test (Med) - 8 - Question 18

Water is flowing over a fixed horizontal surface. If the velocity gradient at a distance 10 cm above the surface is 2 s-1, then velocity of layer will be

SRMJEE Mock Test (Med) - 8 - Question 19

a balloon is at a height of 8l m and is ascending upwards with a velocity of 12 m/s. A body of 2 kg weight is dropped from it. If g = 10m/s2, the body will reach the surface of the earth in

SRMJEE Mock Test (Med) - 8 - Question 20

A body of mass 0.4 kg is whirled in a vertical circle making 2 rev/sec. If the radius of the circle is 2 m, then tension in the string when the body is at the top of the circle, is

SRMJEE Mock Test (Med) - 8 - Question 21

A body weighs 8 gm when placed in one pan and 18 gm when placed on the other pan of a false balance. If the beam is horizontal when both the pans are empty, the true weight of the body is

Detailed Solution for SRMJEE Mock Test (Med) - 8 - Question 21

If the beam is horizontal, the apparent weight = √W1W2
= √18x8 = 12 g m

SRMJEE Mock Test (Med) - 8 - Question 22

A particle is viberating in a simple harmonic motion with an amplitude of 4 cm. At what displacement from the equilibrium position, is its energy half potential and kinetic ?

SRMJEE Mock Test (Med) - 8 - Question 23

A big drop of radius R is formed by 1000 small droplets of water, then the radius of small drop is

SRMJEE Mock Test (Med) - 8 - Question 24

The height y and the distance x along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by y = (8t - 5t2) meter and x = 6t meter, where t is in second. The velocity with which the projectile is projected is

SRMJEE Mock Test (Med) - 8 - Question 25

One of the refracting surfaces of a prism of refractive index √2 is silvered. The angle of the prism is equal to the critical angle of a medium of refractive index 2. A ray of light incident on the unsilvered surface passes through the prism and retraces its path after reflection at the silvered face. Then the angle of incidence on the unsilvered surface is

Detailed Solution for SRMJEE Mock Test (Med) - 8 - Question 25

SRMJEE Mock Test (Med) - 8 - Question 26

The moment of inertia, of a rigid body, depends upon

SRMJEE Mock Test (Med) - 8 - Question 27

Forces of 1 and 2 units act along the lines x=0 and y=0. The equation of the line of action of the resultant is

Detailed Solution for SRMJEE Mock Test (Med) - 8 - Question 27

Here X = 2, Y = 1
tan θ = Y/X = 1/2

∴ Equation of the line of action of the resultant is
y = (tan θ) (x)
y = (1/2) x i.e. 2y - x = 0

SRMJEE Mock Test (Med) - 8 - Question 28

If work W is done in blowing a bubble of radius R from a soap solution, then the work done in blowing a bubble of radius 2R from the same solution is

SRMJEE Mock Test (Med) - 8 - Question 29

A 25 watt, 220 volt and a 100 watt, 220 volt bulb are connected in parallel acorss a 440 volt line

SRMJEE Mock Test (Med) - 8 - Question 30

For a perfect gas, the ratio of volume coefficient of expansion to pressure coefficient is

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