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SRMJEEE Physics Mock Test - 4 - JEE MCQ


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30 Questions MCQ Test - SRMJEEE Physics Mock Test - 4

SRMJEEE Physics Mock Test - 4 for JEE 2024 is part of JEE preparation. The SRMJEEE Physics Mock Test - 4 questions and answers have been prepared according to the JEE exam syllabus.The SRMJEEE Physics Mock Test - 4 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for SRMJEEE Physics Mock Test - 4 below.
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SRMJEEE Physics Mock Test - 4 - Question 1

In a transformer, the output current and voltage are respectively 4 A and 20 V. If ratio of no. of turns in primary to secondary is 2:1, what is the input current and voltage?

SRMJEEE Physics Mock Test - 4 - Question 2

In any fission process, the ratio Mass of fission products/Mass of parent nucleus is

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SRMJEEE Physics Mock Test - 4 - Question 3

A string can withstand a tension of 50 Newtons. The greatest speed at which a body of mass 250 gm can be whirled in a circle using 50 cm length of string is—

SRMJEEE Physics Mock Test - 4 - Question 4

A cannon ball is fired with a velocity 200 m/sec at an angle of 60° with the horizontal. At the highest point of its flight it explodes into 3 equal fragments, one going vertically upwards with velocity 100 m/sec, the second one falling vertically downwards with a velocity 100 m/sec. The third fragment will be moving with a velocity

SRMJEEE Physics Mock Test - 4 - Question 5

A dust particle of mass 10−3 gm is stationary between the plates of a horizontal parallel plate capacitor of 0.016m separation which is connected to a voltage of 100V. How many fundamental charges (e = 1.6 x 10 − 19 C) the dust particle carries

SRMJEEE Physics Mock Test - 4 - Question 6

During execution, OP code of an instruction is stored in the:

SRMJEEE Physics Mock Test - 4 - Question 7

n identical cells each of e.m.f. E and internal resistance r are connected in series. An external resistance R is connected in series to this combination. The current through R is

SRMJEEE Physics Mock Test - 4 - Question 8

If we express the energy of a photon in KeV and the wavelength in angstroms, then energy of a photon can be calculated from the relation

SRMJEEE Physics Mock Test - 4 - Question 9

In an induction coil with resistance, the induced emf will be maximum, when

SRMJEEE Physics Mock Test - 4 - Question 10

Which of the following will be σ if Y=2.4η

SRMJEEE Physics Mock Test - 4 - Question 11

A body of 5 kg weight kept on a rough inclined plane of angle 30° starts sliding with a constant velocity. Then the coefficient of friction is (assume g = 10 m/s2)

SRMJEEE Physics Mock Test - 4 - Question 12

A body is projected vertically upwards from the surface of a planet of radius R with a velocity equal to half the escape velocity for that planet. The maximum height attained by the body is

SRMJEEE Physics Mock Test - 4 - Question 13

In order that the heat flows from one part of a solid to another part, what is required

SRMJEEE Physics Mock Test - 4 - Question 14

Solids expand on heating because

SRMJEEE Physics Mock Test - 4 - Question 15

Curie temperature of iron is the temperature below which it is

SRMJEEE Physics Mock Test - 4 - Question 16

Which of the following statements is not correct about the magnetic field?

SRMJEEE Physics Mock Test - 4 - Question 17

In a surface tension experiment with a capillary tube, water rises upto 8 mm. If the same experiment is repeated on an artificial satellite, which is revoling around the earth, water will tise in capillary tube upto a height of

SRMJEEE Physics Mock Test - 4 - Question 18

Three forces acting on a body are shown in the figure. To have the resultant force only along the y-direction, the magnitude of the minimum additional force needed is :

SRMJEEE Physics Mock Test - 4 - Question 19

A particle covers 150 m in 8th second starting from rest, its acceleration is

SRMJEEE Physics Mock Test - 4 - Question 20

Which of the following is a vector quantity?

SRMJEEE Physics Mock Test - 4 - Question 21

A gun fires a bullet of mass 50gm with a velocity of 30m/s. Because of this gun is pushed back with a velocity of 1m/s. Mass of the gun is

SRMJEEE Physics Mock Test - 4 - Question 22

If a ring is suspended from a point on a 2.25 m long string, then time period of oscillation will be(take g = 9.8 m-s⁻2)

SRMJEEE Physics Mock Test - 4 - Question 23

The root mean square speed of the molecules of a gas is

SRMJEEE Physics Mock Test - 4 - Question 24

A concave mirror of focal length f (in air) is immersed in water (μ = 4/3). The focal length of the mirror in water will be

SRMJEEE Physics Mock Test - 4 - Question 25

A cricketer hits a ball with a velocity 25 m/s at 60° above the horizontal. How far above the ground it passes over a fielder 50 m from the bat (assume the ball is struck very close to the ground)

Detailed Solution for SRMJEEE Physics Mock Test - 4 - Question 25

Here ball is hit by cricketer with 25 m/s velocity.
The angle of projection = 60°
Horizontal component of velocity
vx = 25 cos 60° = 12.5 m/s
Vertical component of velocity

Time taken by ball to cover 50 m dustabce



Now the vertical distance covered by the ball is given by


SRMJEEE Physics Mock Test - 4 - Question 26

A dics of radius 1 m is rotating with an angular velocity of 10 rad-s⁻1. The linear velocity of the dics on a point 0.5 m from its centre is

SRMJEEE Physics Mock Test - 4 - Question 27

The resultant of two forces 3P and 2P is R. If the first force is doubled then the resultant is also doubled. The angle between the two forces is

SRMJEEE Physics Mock Test - 4 - Question 28

Neglecting gravity, the potential energy of a molecule of liquid on the surface of liquid when compared with potential energy of molecule inside the liquid is

SRMJEEE Physics Mock Test - 4 - Question 29

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

SRMJEEE Physics Mock Test - 4 - Question 30

Two metal rods A and B are having their initial lengths in the ratio 2:3 and coefficients of linear expansion in the ratio 3:4, when they are heated through the same temperature difference, the ratio of their linear expansions is

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