JEE Main Physics Mock Test- 5

Question 1

Emission of electrons in the photoelectric effect is possible, if

Accepted Answer

The incident light of sufficiently low wave length

Answer

Metal surface is highly polished

Answer

The incident light is of sufficiently high intensity

Answer

The light is incident at right angles to the surface

Question 2

The de-Broglie wavelength is proportional to

Accepted Answer

Answer

Answer

Answer

Question 3

The acceleration due to gravity at a height 1/10th of the radius of the earth above the earth's surface is 8.2 m-s⁻¹ Its value at a point at the same distance below the surface of the earth is

Accepted Answer

8.93 m-s⁻¹

Answer

7.93 m-s⁻¹

Answer

9.43 m-s⁻¹

Answer

10.23 m-s⁻¹

Question 4

According to Hooke's law of elasticity, if stress is increased, the ratio of stress to strain

Accepted Answer

Remains consatnt

Answer

<h5>Increases</h5>

Answer

<h5>Decreases</h5>

Answer

Becomes zero

Question 5

A 5

μ

F capacitor is fully charged across a 12V battery. It is then disconnected from the battery and connected to an uncharged capacitor. If the voltage across the capacitor becomes 3V, the capacitance of the uncharged capacitor is

Accepted Answer

Answer

Answer

Answer

Question 6

If the error in the measurment of radius of a sphere is 2% , then the error in the determination of volume of the sphere will be

Accepted Answer

Answer

Answer

Answer

Question 7

The volume of a gas will be double of what it is at 0^oC (pressure remaining constant) at

Accepted Answer

Answer

Answer

Answer

Question 8

An L.C. circuit contains 10 mH inductor and a 25 μ F capacitor. The resistance of the circuit is negligible. The energy stored in the circuit is completely magnetic at time (in milli seconds) being measured from the instant when the circuit is closed

Accepted Answer

1.57,4.71,7.85

Answer

1.57,3.14,4.71

Answer

0,1.57,4.71

Answer

None of these

Question 9

The electric potential at any point (x,y,z) in a space is given by: V=4x² volt. The electric field at (1,0,2) m in space is

Accepted Answer

8 V-m^-1, along negative x-axis

Answer

8 V-m^-1, along positive x-axis

Answer

16 V-m^-1, along negative x-axis

Answer

16 V-m^-1, along positive z-axis

Question 10

The horizontal range of a projectile is R, when the angle of projection is 30^o. The value of another angle of projection, for the same range, is

Accepted Answer

Answer

Answer

Answer

Question 11

The first atomic reactor was constructed by

Accepted Answer

<h5>                                  Fermi                               </h5>

Answer

<h5>                                  Einstein                               </h5>

Answer

<h5>                                  Goldstein                               </h5>

Answer

<h5>                                  Curie                               </h5>

Question 12

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): A changing magnetic field acts as a source of electric field known as induced electric field.
Reason(R): Induced electric field can be produced by any static charge distribution.

Accepted Answer

Assertion is true but Reason is false.

Answer

Both Assertion and Reason are true and Reason is the correct explanation of assertion.

Answer

Both Assertion and Reason are true and Reason is not the correct explanation of assertion

Answer

Assertion is false but Reason is true.

Question 13

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Torque is an axial vector and directed along the axis of rotation.
Reason(R): Torque is equal to vector product of force to the position vector.

Accepted Answer

Both Assertion and Reason are true and Reason is the correct explanation of assertion.

Answer

Both Assertion and Reason are true and Reason is not the correct explanation of assertion

Answer

Assertion is true but Reason is false.

Answer

Assertion is false but Reason is true.

Question 14

The astronomical telescope consists of objective and eye-piece. The focal length of the objective is

Accepted Answer

Greater than that of eye piece

Answer

Equal to that of the eye piece

Answer

Shorter than that of eye piece

Answer

Five times shorter than that of the eye piece

Question 15

Frequency range of audible sound is

Accepted Answer

Answer

Answer

Answer

Question 16

A stretched sonometer wire is in unison with a tuning fork of frequency f'. When the length of wire is increased by 2%, the number of beats produced per second is 5. The frequency of fork is

Accepted Answer

Answer

Answer

Answer

Question 17

If a ball of 80 kg mass hits an ice cube and temperature of ball is 100^oC, how much ice becomes water? Specific heat of ball is 0.2 cal/gram.

Accepted Answer

Answer

Answer

Answer

Question 18

Bright colours exihibited by spider's web exposed to sun light are due to

Accepted Answer

interference

Answer

diffraction

Answer

polarisation

Answer

<h5>                                  resolution                               </h5>

Question 19

A bullet of mass 50 gram is fired from a 5 kg gun with a velocity of 1 km/sec. The speed of recoil of the gun is

Accepted Answer

Answer

Answer

Answer

Question 20

Two uncharged identical capacitors A and B, each of capacitance C, and an inductor of inductance L are arranged as shown in the adjacent figure. At t = 0, the switch S₁ is closed while switch S₂ remains open. At time t = t₀=√LCπ/2, switch S₂ is closed while switch S₁ is opened.
Q. The charge on capacitor A after time t₀ is

Q. The charge on capacitor A after time t₀ is

Accepted Answer

Answer

Answer

Answer

Question 21

A massless metal plate is placed on a horizontal tabletop lubricated with oil. The sheet is a square of side length ℓ = 1.0m and the oil layer has thickness h = 1.0 mm. Initially one edge of the sheet coincides with one edge of the table. The sheet is pulled outwards without rotation with a constant force F = 15 N. If coefficient of viscosity of the oil is η = 0.2 N-s/m², how long (in second) will it take to pull half of the sheet out of the table?

Accepted Answer

Question 22

Write the value of current i₃ (in mA) in the circuit shown in the figure.

Accepted Answer

Question 23

A monochromatic light of wavelength 6500Å is used in YDSE. Now both slits are covered by two thin slab of refractive index 3.2 and 2.7 respectively. By doing so central bright fringe shifts to original 7^th bright fringe. If both slabs have same thickness then thickness of slab is (in µm).

Accepted Answer

Question 24

A hollow sphere (mass m, radius R) is put inside a hollow cone (mass m, radius 3R and semi-angle 30°) as shown in the figure. The whole arrangement is rigidly fixed to the ground at the apex of the cone. Both the sphere and the cone are made of the same material (α = 10^–4 /°C). Considering that major changes in dimensions could happen only due to heating effects, find the increase in potential energy (in Joule) of the system if it's temperature is increased by 100°C.

Accepted Answer

Question 25

A rod is clamped at both of its ends and stationary longitudinal waves are produced in it. In first experiment, the rod has a total of 4 nodes with amplitude of each anti-node to be 1 mm. In other experiment, the rod has a total of 6 nodes with amplitude of each anti node to be 2mm. The energy of vibrations in the rod in two cases is E₁ and E₂ respectively. Write value of E₁/E₂.

Accepted Answer

JEE Main Physics Mock Test- 5 Free Online Test 2026

Full Mock Test & Solutions: JEE Main Physics Mock Test- 5 (25 Questions)

Emission of electrons in the photoelectric effect is possible, if

The de-Broglie wavelength is proportional to

The acceleration due to gravity at a height 1/10th of the radius of the earth above the earth's surface is 8.2 m-s⁻¹ Its value at a point at the same distance below the surface of the earth is

According to Hooke's law of elasticity, if stress is increased, the ratio of stress to strain

A 5 $μ$ F capacitor is fully charged across a 12V battery. It is then disconnected from the battery and connected to an uncharged capacitor. If the voltage across the capacitor becomes 3V, the capacitance of the uncharged capacitor is

If the error in the measurment of radius of a sphere is 2% , then the error in the determination of volume of the sphere will be

The volume of a gas will be double of what it is at 0^oC (pressure remaining constant) at

An L.C. circuit contains 10 mH inductor and a 25 μ F capacitor. The resistance of the circuit is negligible. The energy stored in the circuit is completely magnetic at time (in milli seconds) being measured from the instant when the circuit is closed

The electric potential at any point (x,y,z) in a space is given by: V=4x² volt. The electric field at (1,0,2) m in space is

The horizontal range of a projectile is R, when the angle of projection is 30^o. The value of another angle of projection, for the same range, is

The first atomic reactor was constructed by

The astronomical telescope consists of objective and eye-piece. The focal length of the objective is

Frequency range of audible sound is

A stretched sonometer wire is in unison with a tuning fork of frequency f'. When the length of wire is increased by 2%, the number of beats produced per second is 5. The frequency of fork is

If a ball of 80 kg mass hits an ice cube and temperature of ball is 100^oC, how much ice becomes water? Specific heat of ball is 0.2 cal/gram.

Bright colours exihibited by spider's web exposed to sun light are due to

A bullet of mass 50 gram is fired from a 5 kg gun with a velocity of 1 km/sec. The speed of recoil of the gun is

Write the value of current i₃ (in mA) in the circuit shown in the figure.

A monochromatic light of wavelength 6500Å is used in YDSE. Now both slits are covered by two thin slab of refractive index 3.2 and 2.7 respectively. By doing so central bright fringe shifts to original 7^th bright fringe. If both slabs have same thickness then thickness of slab is (in µm).

Mock Tests for JEE Main and Advanced 2026

Mock Tests for JEE Main and Advanced 2026

Top Courses for JEE

About this JEE Mock Test

Explore more JEE Resources

JEE Main Physics Mock Test- 5 Free Online Test 2026

Full Mock Test & Solutions: JEE Main Physics Mock Test- 5 (25 Questions)

Emission of electrons in the photoelectric effect is possible, if

The de-Broglie wavelength is proportional to

The acceleration due to gravity at a height 1/10th of the radius of the earth above the earth's surface is 8.2 m-s⁻1 Its value at a point at the same distance below the surface of the earth is

According to Hooke's law of elasticity, if stress is increased, the ratio of stress to strain

A 5 μF capacitor is fully charged across a 12V battery. It is then disconnected from the battery and connected to an uncharged capacitor. If the voltage across the capacitor becomes 3V, the capacitance of the uncharged capacitor is

If the error in the measurment of radius of a sphere is 2% , then the error in the determination of volume of the sphere will be

The volume of a gas will be double of what it is at 0oC (pressure remaining constant) at

An L.C. circuit contains 10 mH inductor and a 25 μ F capacitor. The resistance of the circuit is negligible. The energy stored in the circuit is completely magnetic at time (in milli seconds) being measured from the instant when the circuit is closed

The electric potential at any point (x,y,z) in a space is given by: V=4x2 volt. The electric field at (1,0,2) m in space is

The horizontal range of a projectile is R, when the angle of projection is 30o. The value of another angle of projection, for the same range, is

The first atomic reactor was constructed by

The astronomical telescope consists of objective and eye-piece. The focal length of the objective is

Frequency range of audible sound is

A stretched sonometer wire is in unison with a tuning fork of frequency f'. When the length of wire is increased by 2%, the number of beats produced per second is 5. The frequency of fork is

If a ball of 80 kg mass hits an ice cube and temperature of ball is 100oC, how much ice becomes water? Specific heat of ball is 0.2 cal/gram.

Bright colours exihibited by spider's web exposed to sun light are due to

A bullet of mass 50 gram is fired from a 5 kg gun with a velocity of 1 km/sec. The speed of recoil of the gun is

Write the value of current i3 (in mA) in the circuit shown in the figure.

A monochromatic light of wavelength 6500Å is used in YDSE. Now both slits are covered by two thin slab of refractive index 3.2 and 2.7 respectively. By doing so central bright fringe shifts to original 7th bright fringe. If both slabs have same thickness then thickness of slab is (in µm).

Mock Tests for JEE Main and Advanced 2026

Mock Tests for JEE Main and Advanced 2026

Top Courses for JEE

About this JEE Mock Test

Explore more JEE Resources

The acceleration due to gravity at a height 1/10th of the radius of the earth above the earth's surface is 8.2 m-s⁻¹ Its value at a point at the same distance below the surface of the earth is

A 5 $μ$ F capacitor is fully charged across a 12V battery. It is then disconnected from the battery and connected to an uncharged capacitor. If the voltage across the capacitor becomes 3V, the capacitance of the uncharged capacitor is

The volume of a gas will be double of what it is at 0^oC (pressure remaining constant) at

The electric potential at any point (x,y,z) in a space is given by: V=4x² volt. The electric field at (1,0,2) m in space is

The horizontal range of a projectile is R, when the angle of projection is 30^o. The value of another angle of projection, for the same range, is

If a ball of 80 kg mass hits an ice cube and temperature of ball is 100^oC, how much ice becomes water? Specific heat of ball is 0.2 cal/gram.

Write the value of current i₃ (in mA) in the circuit shown in the figure.

A monochromatic light of wavelength 6500Å is used in YDSE. Now both slits are covered by two thin slab of refractive index 3.2 and 2.7 respectively. By doing so central bright fringe shifts to original 7^th bright fringe. If both slabs have same thickness then thickness of slab is (in µm).