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All Physics 11 papers

Class 11 · Past paper

Physics 11 past paper 2023

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

17 MCQs23 written questionsPractise this paper

Question index

13
The dimension of spring constant $K$ is:
MCQ1 marksannualMeasurements
3
Gravity performs zero work when a body moves:
MCQ1 marksannualWork And Kinetic Energy
1
Which one of the following is a **dimensionless quantity**?
MCQ1 marksannual
1
Differentiate between **'precision'** and **'accuracy'**.

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

Show that the potential at a point is equal to work done in bringing a unit mass from infinity to that point.

Part C7 marksannual

2

Real and apparent weights of a body seem to be equal when body moves with acceleration:

MCQ1 marksannual

2

How are cranes able to lift heavy load without toppling? Explain briefly.

Part B3 marksannual

2

Differentiate **'molar specific heat at constant pressure ($C_p$)'** and **'molar specific heat at constant volume ($C_v$)'**. Justify that $C_p > C_v$. Also prove that $C_p - C_v…

Part C6 marksannual

3

Prove that the equation $E = hf$ is dimensionally correct. (Where $E = $ energy and $f = $ frequency)

Part B3 marksannual

3

Describe **S.H.M.** Prove that the Projection of a body moving in a circular path executes S.H.M along the diameter. Also derive an expression for time period and frequency of this…

Part C7 marksannual

4

Which one is **TRUE** for isothermal process?

MCQ1 marksannual

4

Co-relate Newton's third law of motion and conservation of momentum with the help of an example.

Part B3 marksannual

4

A source of sound and observer are moving toward each other. What happens to the apparent pitch heard by the observer? What will happen if both are moving away from each other? Exp…

Part C6 marksannual

5

If the temperatures of source and sink of a Carnot engine (having efficiency $\eta_1$) are each increased by $200 K$, then the efficiency $\eta_2$ will:

MCQ1 marksannual

5

What is **impulsive force**? Explain the effect of lengthening of time on impulsive force. Give one of its common life applications.

Part B3 marksannual

5

State and derive Bernoulli's equation. Also give one of its applications.

Part C7 marksannual

6

Due to which phenomenon different colours appear in soap film in sunlight?

MCQ1 marksannual

6

What will be the effect of gravity on vertical and horizontal components of projectile velocity? Give its mathematical expression(s).

Part B3 marksannual

6

Calculate the resultant of two forces of $30 N$ and $40 N$ acting at a point making angles of $0^{\circ}$ and $120^{\circ}$ with x-axis respectively.

Part C6 marksannual

7

In Young's double slit experiment, the fringe spacing is:

MCQ1 marksannual

7

Describe that work done is equal to area under the force-displacement graph.

Part B3 marksannual

8

For constructive interference, path difference, $d = $

MCQ1 marksannual

8

What is **escape velocity** ($v_{esc}$)? Derive the expression $v_{esc} = \sqrt{2gR_e}$.

Part B3 marksannual

9

When length of a simple pendulum is doubled, the ratio of old to new time period will be:

MCQ1 marksannual

9

Why is a rifle barrel "rifled"? Give reason in context of conservation of angular momentum.

Part B3 marksannual

10

If 30 waves pass through a medium in 1 second with speed 30 m/s, then wavelength is:

MCQ1 marksannual

10

Briefly explain the following terms: (a) Moment of inertia of a body (b) Angular momentum

Part B3 marksannual

11

Stars moving away from the earth show:

MCQ1 marksannual

11

Which object will attain terminal velocity first, a lighter object or a heavier object? Justify your answer.

Part B3 marksannual

12

If tension in a stretched string is made four times then velocity of waves:

MCQ1 marksannual

14

The velocity of projectile at its maximum height is:

MCQ1 marksannual

14

What will be the frequency of a simple pendulum if its length is 2 meters? (Assume g = 9.8 m/s² or 10 m/s²)

Part B3 marksannual

15

If $\vec{A} = 2 \hat{i} - \hat{j} + 3 \hat{k}$ then magnitude of $\vec{A}$ is:

MCQ1 marksannual

15

How progressive waves differ from stationary waves? Give examples also.

Part B3 marksannual

16

In the impulse-momentum theorem, $F \cdot \Delta t = \dots$

MCQ1 marksannual

17

In equation of continuity, the 'volume flow rate' is equal to:

MCQ1 marksannual

17

What is meant by the **path difference** with reference to the interference of two waves?

Part B3 marksannual

18

State **Huygens' Principle**. Use it to construct wave front after a time interval '$t$'.

Part B3 marksannual

19

Is the energy degraded during all natural processes? Explain.

Part B3 marksannual

20

Find Moon's angular momentum about Earth using Earth-Moon distance = $3.8 \times 10^8$ m and Mass of Moon = $7.35 \times 10^{22}$ kg. (Assume Moon's orbital period is 27.3 days.)

Part B3 marksannual

Physics 11 Past Paper 2023 | Notely