Class 11 Physics MCQ Chapter 14 Oscillations English Medium
Are you looking for Class 11 Physics MCQ Chapter 14 Oscillations English Medium? This article is a useful study resource for AHSEC Higher Secondary First Year students who want to practice important multiple-choice questions and improve their Physics preparation.
The chapter Oscillations deals with repetitive to-and-fro motion about an equilibrium position. Students will learn about simple harmonic motion (SHM), amplitude, time period, frequency, angular frequency, displacement, velocity, acceleration, and energy in oscillatory motion. The chapter also explains oscillations in springs and pendulums, which are important for understanding many natural and mechanical systems.
The MCQs provided here are prepared according to the latest AHSEC syllabus and examination pattern. These objective questions help students revise key concepts, strengthen their understanding of oscillatory motion, and become familiar with exam-oriented questions. Regular practice can improve accuracy, confidence, and overall performance in examinations.
Whether you are preparing for class tests, annual examinations, or the AHSEC HS First Year Final Examination, these MCQ solutions will help you revise the chapter effectively and score better marks in Physics.
Part II
Class 11 Physics MCQ Chapter 14 Oscillations
VSA & MCQs
I. Very Short Answer (VSA) Questions with Answers
Q. What is oscillatory motion?
Ans: The to-and-fro motion of a body about its mean position is called oscillatory motion.
Q. What is periodic motion?
Ans: A motion which repeats itself after equal intervals of time is called periodic motion.
Q. What is Simple Harmonic Motion (SHM)?
Ans: SHM is a periodic motion in which the restoring force is directly proportional to displacement and acts towards the mean position.
Q. What is the mean position in oscillation?
Ans: The central position about which a body oscillates.
Q. What is amplitude?
Ans: Maximum displacement from the mean position.
Q. What is the time period?
Ans: Time taken to complete one oscillation.
Q. What is frequency?
Ans: Number of oscillations completed in one second.
Q. What is angular frequency?
Ans: Angular displacement covered per unit time in oscillatory motion.
Q. What is the phase of oscillation?
Ans: The quantity that determines the state and direction of motion of a particle.
Q. What is restoring force?
Ans: Force that brings the body back towards the mean position.
Q. What is damping?
Ans: Gradual decrease in amplitude due to resistive forces.
Q. What is free oscillation?
Ans: Oscillation is performed without external force or damping.
Q. What is forced oscillation?
Ans: Oscillation produced by an external periodic force.
Q. What is resonance?
Ans: Resonance occurs when the frequency of the external force equals the natural frequency of the system.
Q. What is natural frequency?
Ans: Frequency with which a body oscillates freely.
Q. On what factors does the time period of a simple pendulum depend?
Ans: Length of pendulum and acceleration due to gravity.
Q. What is the SI unit of frequency?
Ans: Hertz (Hz).
Q. What is one hertz?
Ans: One oscillation per second.
Q. What is phase difference?
Ans: Difference in phase between two oscillating particles.
Q. What is the oscillation of a spring-mass system?
Ans: Repeated to-and-fro motion of a mass attached to a spring.
Q. What type of energy continuously changes during SHM?
Ans: Kinetic energy and potential energy.
Multiple Choice Questions (MCQs)
Q. Oscillatory motion is a type of:
(a) Circular motion
(b) Periodic motion
(c) Projectile motion
(d) Random motion
Ans: (b) Periodic motion
Q. In SHM, restoring force is proportional to:
(a) Velocity
(b) Acceleration
(c) Displacement
(d) Momentum
Ans: (c) Displacement
Q. The SI unit of frequency is:
(a) Joule
(b) Hertz
(c) Newton
(d) Pascal
Ans: (b) Hertz
Q. Maximum displacement in SHM is called:
(a) Phase
(b) Frequency
(c) Amplitude
(d) Velocity
Ans: (c) Amplitude
Q. The time period of a simple pendulum depends on:
(a) Mass of bob
(b) Amplitude only
(c) Length of pendulum
(d) Shape of bob
Ans: (c) Length of pendulum
Q. The motion of a simple pendulum is approximately SHM for:
(a) Large amplitudes
(b) Small amplitudes
(c) Infinite amplitudes
(d) No amplitudes
Ans: (b) Small amplitudes
Q. The restoring force in SHM acts:
(a) Away from mean position
(b) Towards mean position
(c) Along velocity
(d) Perpendicular to motion
Ans: (b) Towards mean position
Q. Which energy is maximum at mean position in SHM?
(a) Potential energy
(b) Kinetic energy
(c) Heat energy
(d) Sound energy
Ans: (b) Kinetic energy
Q. Potential energy in SHM is maximum at:
(a) Mean position
(b) Extreme position
(c) Every position
(d) Zero position
Ans: (b) Extreme position
Q. The SI unit of angular frequency is:
(a) rad/s
(b) m/s
(c) Hz
(d) Joule
Ans: (a) rad/s
Q. Damping causes the amplitude to:
(a) Increase
(b) Remain constant
(c) Decrease
(d) Become infinite
Ans: (c) Decrease
Q. Resonance occurs when external frequency equals:
(a) Zero frequency
(b) Natural frequency
(c) Infinite frequency
(d) Angular frequency only
Ans: (b) Natural frequency
Q. The motion of a swing is an example of:
(a) Linear motion
(b) Circular motion
(c) Oscillatory motion
(d) Random motion
Ans: (c) Oscillatory motion
Q. In SHM, acceleration is:
(a) Constant
(b) Zero
(c) Proportional to displacement
(d) Independent of displacement
Ans: (c) Proportional to displacement
Q. At the mean position of SHM, displacement is:
(a) Maximum
(b) Minimum
(c) Zero
(d) Infinite
Ans: (c) Zero
Q. At the extreme position of SHM, velocity is:
(a) Maximum
(b) Minimum
(c) Zero
(d) Infinite
Ans: (c) Zero
Q. One complete oscillation means:
(a) Half cycle
(b) Quarter cycle
(c) Full cycle
(d) No cycle
Ans: (c) Full cycle
Q. Which device works on the resonance principle?
(a) Transformer
(b) Radio tuner
(c) Ammeter
(d) Galvanometer
Ans: (b) Radio tuner
Q. The time period of a simple pendulum increases when:
(a) Length decreases
(b) Length increases
(c) Gravity increases
(d) Mass increases
Ans: (b) Length increases
Q. In SHM, force and displacement are:
(a) In same direction
(b) In opposite direction
(c) Perpendicular
(d) Independent
Ans: (b) In the opposite direction
Q. Frequency of oscillation decreases when the time period:
(a) Decreases
(b) Increases
(c) Remains constant
(d) Becomes zero
Ans: (b) Increases
Q. Oscillations produced without external force are called:
(a) Forced oscillations
(b) Damped oscillations
(c) Free oscillations
(d) Random oscillations
Ans: (c) Free oscillations
Q. The graph of SHM is generally:
(a) Straight line
(b) Circular
(c) Sinusoidal
(d) Triangular
Ans: (c) Sinusoidal
Q. Which quantity remains constant in ideal SHM?
(a) Velocity
(b) Acceleration
(c) Total mechanical energy
(d) Displacement
Ans: (c) Total mechanical energy
Q. At the mean position of SHM, the acceleration is:
(a) Maximum
(b) Minimum
(c) Zero
(d) Infinite
Ans: (c) Zero
Q. The motion of molecules in a tuning fork produces:
(a) Rotation
(b) Translation
(c) Vibrations
(d) Projectile motion
Ans: (c) Vibrations
Q. Which factor does not affect the time period of a simple pendulum?
(a) Length
(b) Gravity
(c) Mass of bob
(d) None
Ans: (c) Mass of bob
Q. Assertion (A): In SHM, the restoring force acts towards the mean position.
Reason (R): Restoring force is proportional to displacement and opposite in direction.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Ans: (a) Both A and R are true and R is the correct explanation of A.
Q. Assertion (A): Velocity is maximum at the mean position in SHM.
Reason (R): Potential energy is minimum at the mean position.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Ans: (a) Both A and R are true and R is the correct explanation of A.
Q. Assertion (A): Resonance may produce very large amplitude oscillations.
Reason (R): External frequency becomes equal to natural frequency.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Ans: (a) Both A and R are true and R is the correct explanation of A.
Q. Assertion (A): The time period of a simple pendulum is independent of mass.
Reason (R): Mass does not appear in the formula of time period.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Ans: (a) Both A and R are true and R is the correct explanation of A.
Q. Assertion (A): Damping decreases the amplitude of oscillation.
Reason (R): Energy is lost due to resistive forces.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
Q. Assertion (A): At the extreme position of SHM, the kinetic energy is zero.
Reason (R): Velocity becomes zero at the extreme position.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
Q. Assertion (A): Frequency and time period are inversely proportional.
Reason (R): Frequency is the reciprocal of the time period.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
