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SRMJEEE Physics Mock Test - 1 - JEE MCQ


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30 Questions MCQ Test - SRMJEEE Physics Mock Test - 1

SRMJEEE Physics Mock Test - 1 for JEE 2025 is part of JEE preparation. The SRMJEEE Physics Mock Test - 1 questions and answers have been prepared according to the JEE exam syllabus.The SRMJEEE Physics Mock Test - 1 MCQs are made for JEE 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for SRMJEEE Physics Mock Test - 1 below.
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SRMJEEE Physics Mock Test - 1 - Question 1
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An object is projected with a velocity of 20 m/s making an angle of 45o with horizontal. The equation for the trajectory is h = Ax - Bx2 where h is height, x is horizontal distance, A and B are constants. The ratio A : B is (g = 10 ms⁻2)

SRMJEEE Physics Mock Test - 1 - Question 2
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A spherical shell has mass M and radius R. Moment of inertia about its diameter will be

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SRMJEEE Physics Mock Test - 1 - Question 3
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At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string at that instant is

SRMJEEE Physics Mock Test - 1 - Question 4
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In the given circuit, the value of current flowing across the resistances A and B is
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 4

Apply KCL at node A.

Simplifying the above equations, we get

Current,

This is our required solution.

SRMJEEE Physics Mock Test - 1 - Question 5
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If a spring is extended to length l, then according to Hooke's law
SRMJEEE Physics Mock Test - 1 - Question 6
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A wire of length l is in the form of a circular loop having one turn only. The loop is carrying a current I and induces a magnetic field of strength B1 at the centre of the loop. If the same wire is used to make a coil having two turns, then the strength of the magnetic field at the centre is B2 providing the current flowing the loop is same. The correct option is
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 6

SRMJEEE Physics Mock Test - 1 - Question 7
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If a solid spherical ball is rolling on a horizontal table, the ratio of its rotational kinetic energy to the total energy is
SRMJEEE Physics Mock Test - 1 - Question 8
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An electron having mass m and kinetic energy E enter in uniform magnetic field B perpendicularly, then its frequency will be
SRMJEEE Physics Mock Test - 1 - Question 9
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What will be the focal length of the eyepiece and the objective lens of a telescope, if the angular magnification of the telescope is given to be 5 for far object. The final image is formed at infinity and the distance between the eyepiece and the objective lens of the telescope is 54 cm. (Focal length of eyepiece = fE; Focal length of objective = fO)
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 9


The image formed by the objective lens will be at the focus of the objective as it is used to focus the far objects.
Let the point of image formation by objective be IO.
Therefore, POIO = fO
Image IO must lie on the first focus of the eyepiece, as the final image is formed at infinity.
Therefore,
PEIO = fE
Therefore, fO + fE = 54 cm
Also, magnification is given to be 5.
Therefore,

Therefore, it is the correct option.

SRMJEEE Physics Mock Test - 1 - Question 10
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When a star moves away from earth, the spectrum of the star shifts towards higher wavelength side. This is due to
SRMJEEE Physics Mock Test - 1 - Question 11
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Two bodies are projected from the same point with equal speeds in such directions that they both strike the same point on a plane whose inclination is β. If α be the angle of projection of the first body with the horizontal the ratio of their times of flight is
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 11


Let β be the inclination of plane
α angle of projection of 1st body 
angle of projection of 2nd body
The component of g perpendicular to the plane = −gcosβ
For the first component,
x = vt cos α, y = vt sin(α − β) − g cos βt2 
Finding Range,

The range of both the bodies is same.

SRMJEEE Physics Mock Test - 1 - Question 12
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A ball whose K.E. is E is projected at an angle of 45o to the horizontal. The kinetic energy of the ball at the highest point of its flight will be
SRMJEEE Physics Mock Test - 1 - Question 13
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SI Unit of Electric Flux is 
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 13

SI Unit of Electric Flux is N m2 C-1

SRMJEEE Physics Mock Test - 1 - Question 14
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Two particles P and Q are located at distances rP and rQ respectively from the centre of a rotating dise such that

rP > rQ
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 14

As the objects are not moving their
Tangential Acceleration = rα -(1)
Now, you can estimate from (1) that who will be having greater acceleration.

*Note that I am not considering Normal acceleration as centrifugal acceleration is balancing it.

So, the answer will be option (C)

i.e. P has greater acceleration as compared to Q because rP>rQ (P will have greater tangential acceleration than Q)

SRMJEEE Physics Mock Test - 1 - Question 15
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Two stones are projected with same velocity v at an angle θ¸ and (90° − θ). If H1 and H2 are greatest heights in the two paths, what is the relation between R, H1 and H2?
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 15


  (Range remains same, if θ2 = 90 − θ1) 

SRMJEEE Physics Mock Test - 1 - Question 16
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Choose the correct match from the options.
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 16

Moseley's law for X-ray spectrum is expressed aswhere b = constant and depends upon the series.

Rutherford and Soddy formulated the radioactive decay law which is expressed as 
De Broglie wavelength is the wavelength associated with a particle of mass m and having velocity v. The de Broglie wavelength is given by:

Therefore, it is the correct option.

SRMJEEE Physics Mock Test - 1 - Question 17
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A circular wire of radius 50 mm with 500 turns is acting as an inductor in a circuit. The approximate value of self-inductance for the wire will be
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 17

We know,
NBA = LI
And

Therefore, it is the correct option.

SRMJEEE Physics Mock Test - 1 - Question 18
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A stone of mass of 16 kg is attached to a string 144 m long and is whirled in a horizontal circle. The maximum tension the string can withstand is 16 Newton. The maximum velocity of revolution that can be given to the stone without breaking it, will be
SRMJEEE Physics Mock Test - 1 - Question 19
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If two soap bubbles of different radii are connected by a tube, then
SRMJEEE Physics Mock Test - 1 - Question 20
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In the graph below, the deviation of a ray of light is plotted against the angle of incident i when it passes through a prism.

The points X and Y in the plot respectively represent
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 20

The deviation of the prism is given by:

At minimum deviation,

The point X represents  and the point Y represents δm or minimum deviation.
Therefore, it is the correct option.

SRMJEEE Physics Mock Test - 1 - Question 21
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Rocket engines lift a rocket from the earth surface because hot gas with high velocity
SRMJEEE Physics Mock Test - 1 - Question 22
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A wire of length L and cross-section A is made of material of Young's modulus Y. If it is stretched by an amount x, then work done is
SRMJEEE Physics Mock Test - 1 - Question 23
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A column of water 60 cm high supports a column of an unknown liquid of density 1500 kg-m⁻3. The height of liquid column is (Density of water = 1000 kg-m⁻3)
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 23

The pressure due to a column of liquid is given by:

P=h⋅ρ⋅g

where:

  • h is the height of the liquid column,
  • ρ is the density of the liquid,
  • g is the acceleration due to gravity.

Let h1​ be the height of the water column and ρ1​ be the density of water. Similarly, let h2​ be the height of the unknown liquid column and ρ2​ be the density of the unknown liquid.

Given:

  • h1​=60 cm
  • ρ1​=1000 kg/m³
  • ρ2​=1500 kg/m³

The pressure at the bottom of the water column is equal to the pressure at the bottom of the unknown liquid column. Therefore:

h1​⋅ρ1​⋅g=h2​⋅ρ2​⋅g

The acceleration due to gravity g cancels out from both sides:

h1​⋅ρ1​=h2​⋅ρ2​

Substitute the known values:

60 cm⋅1000 kg/m3=ℎ2⋅1500 kg/m360cm⋅1000kg/m3=h2​⋅1500kg/m3

Solve for h2​:

h2​=1500 x 60/1000​

h2=60000 /1500

h2​=40cm

Therefore, the height of the liquid column of the unknown liquid is:

  1. 40 cm
SRMJEEE Physics Mock Test - 1 - Question 24
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For measuring an unknown resistance, a meter bridge with a standard resistance of 90 Ώ is used. The null point indicated by the jockey is 40 cm on the standard resistance. If the scale used to measure the length of the standard resistance is accurate with a deviation of ±1 mm, the value of the unknown resistance and the deviation is
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 24

For a balance meter bridge,

Therefore, the value of the unknown resistance is 60 Ώ.
Deviation in the value of X:
As we know,

Therefore, the deviation is ±0.25.
So, the value of the unknown resistance is (60 ± 0.25).
Therefore, it is the correct option.

SRMJEEE Physics Mock Test - 1 - Question 25
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A coil with 400 turns and 0.1 square metre area is placed perpendicularly in a magnetic field of strength 4 × 10-5 Wb/m2. If it rotates through 90 degrees in 0.1 sec, what will be the voltage of average emf that will be induced in the coil?
Detailed Solution for SRMJEEE Physics Mock Test - 1 - Question 25

The induced emf will be given by:

Therefore, it is the correct option.

SRMJEEE Physics Mock Test - 1 - Question 26
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A bullet fired into a fixed target loses half of its velocity after penetrating 3 cm. How much further it will penetrate before coming to rest, assuming that it faces constant resistance to motion?
SRMJEEE Physics Mock Test - 1 - Question 27
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The metal used in the electric heater element is
SRMJEEE Physics Mock Test - 1 - Question 28
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Which of the following phenomena establish the wave nature of light?
SRMJEEE Physics Mock Test - 1 - Question 29
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A convex lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. The power of combination is
SRMJEEE Physics Mock Test - 1 - Question 30
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At a given temperature the ratio of r.m.s. velocities of hydrogen molecule and helium atom will be
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