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Physics 11 Past Paper 2025 | Notely

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All Physics 11 papers

Class 11 · Past paper

Physics 11 past paper 2025

52 published questions in this index. The full practice view lets you work through them and track your own attempts.

17 MCQs35 written questionsPractise this paper

Question index

16
The mass of a photon is:
MCQ1 marksannualParticle Physics
17
Which of the following is not a fundamental particle?
MCQ1 marksannualParticle Physics
1
The dimensions [ML²T⁻²] show:
MCQ1 marksannual
1
Briefly explain **'precision'** and **'accuracy'** with a diagram.

This is a skimmable index, not a replacement for the study surface. Open the practice view to answer questions and use the linked study material.

Part B

3 marks

annual

1

State and explain **vector product** with an example. Also show that $\bar{A} \times \bar{B} \neq \bar{B} \times \bar{A}$.

Part C7 marksannual

2

If $r = 2.25 \pm 0.01 \text{ cm}$ then percentage uncertainty in "$r$" will be:

MCQ1 marksannual

2

How can ordinary light be polarized using polarizers?

Part B3 marksannual

2

What is meant by **projectile**? Derive the mathematical expressions of the following for projectile motion: i) Time of flight ii) Range and maximum range of projectile

Part C7 marksannual

3

$\hat{j} \cdot (\hat{i} \times \hat{k}) =$

MCQ1 marksannual

3

The velocity of a missile traveling at $1500 \text{ ms}^{-1}$ increases to $5000 \text{ ms}^{-1}$ after moving through a distance of $70 \text{ km}$. Calculate the time for the mis…

Part B3 marksannual

3

Explain the working of a refrigerator. Also explain the coefficient of performance of a refrigerator.

Part C6 marksannual

4

Magnitude of centripetal force $F_c =$

MCQ1 marksannual

4

A body at $200^{\circ}\text{C}$ undergoes a reversible isothermal process. The heat energy removed in this process is $7300 \text{ J}$. Calculate the entropy change and discuss ent…

Part B3 marksannual

4

State **work-energy theorem**. Explain this theorem for resistive medium.

Part C6 marksannual

5

If the voltage and current remain constant in a DC motor, then its rotational speed:

MCQ1 marksannual

5

What is meant by **'conservative'** and **'non-conservative'** forces? Give one example each.

Part B3 marksannual

5

State the **equation of continuity** and derive its mathematical form. On what basis is the equation of continuity derived?

Part C7 marksannual

6

Two bodies A and B of same masses have velocities in the ratio $2:1$, their kinetic energies are in the ratio:

MCQ1 marksannual

6

What is meant by **Magnus effect**? Explain with the help of an example.

Part B3 marksannual

6

What is meant by **elastic potential energy**? Find a relation for the elastic potential energy of a material.

Part C7 marksannual

7

What is the weight of a $100 \text{ g}$ mass?

MCQ1 marksannual

7

Differentiate between **crystalline solids** and **amorphous solids**. (Give at least three differences.)

Part B3 marksannual

7

Why does an astronaut feel weightless in space? How can artificial gravity be produced in a satellite? For a satellite derive expression for angular velocity, time period and frequ…

Part C6 marksannual

8

Young's Modulus, $Y =$

MCQ1 marksannual

8

Earth completes its one rotation about its axis in $24 \text{ hours}$. Calculate angular velocity of earth about its axis in radian per second.

Part B3 marksannual

9

In an adiabatic process which quantity remains constant?

MCQ1 marksannual

9

The Doppler effect is used in radar systems. Briefly explain the working of a radar system.

Part B3 marksannual

10

Location of a submarine in deep sea can be detected by:

MCQ1 marksannual

10

Verify that: $(\vec{A} \cdot \vec{B})^2 + (\vec{A} \times \vec{B})^2 = (AB)^2$

Part B3 marksannual

11

An electron is placed in a uniform electric field directed from south to north. In which direction will the electron move after it is released?

MCQ1 marksannual

11

Calculate KE in electron volt and joules gained by an electron moving through a potential difference of $2 \text{ volts}$.

Part B3 marksannual

12

To increase the sensitivity of a galvanometer, the suspension wire should be:

MCQ1 marksannual

12

What happens to the density of an object as it moves in a direction with very high speed relative to the speed of light? Justify.

Part B3 marksannual

13

Two parallel wires carrying current in opposite directions, the wires will:

MCQ1 marksannual

13

Why does the resistance of LDR decrease with increase in intensity of light on it?

Part B3 marksannual

14

One weber is equal to:

MCQ1 marksannual

14

State **Faraday's law** of electromagnetic induction. Give its mathematical form.

Part B3 marksannual

15

When an object moves with a very high speed relative to an observer, what happens to its length in the direction of motion, according to Special Relativity?

MCQ1 marksannual

15

Does the induced emf in a circuit depend on the resistance of the circuit? Does the induced current depend on the resistance of the circuit? Justify.

Part B3 marksannual

16

At what speed would the mass of proton be doubled? The rest mass of proton is $1.673 \times 10^{-27} \text{ kg}$.

Part B3 marksannual

17

The Kinetic energy of a charged particle moving in a uniform magnetic field does not change. Why? Explain briefly.

Part B3 marksannual

18

If $^{233}_{92}U$ decays twice by alpha particle emission, what is the resulting isotope? Show by equation.

Part B3 marksannual

19

What is **Faraday's cage**? Briefly explain its working.

Part B3 marksannual

20

Compare gluons and photons in terms of the force each mediates, their mass, and their electric charge.

Part B3 marksannual

21

What is meant by **annihilation**? Give one annihilation reaction.

Part B3 marksannual

22

To increase the intensity of wave by a factor of 10, calculate the required increase in amplitude of wave.

Part B3 marksannual

23

How will the radius of a flexible ring change if it is given negative charge?

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24

What is the difference between **inertial** and **non-inertial** frame of reference?

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25

Use dimensional analysis to prove the equation $P = \rho gh$ is dimensionally homogeneous.

Part B3 marksannual

26

Write three statements of **second law of thermodynamics**. (one in terms of entropy)

Part B3 marksannual

27

Derive the relation between torque, moment of inertia and angular acceleration.

Part B3 marksannual

28

What is meant by **interference**? Give conditions for interference.

Part B3 marksannual