# MCQ for Class 11 Physics Chapter 14 Oscillations with answer

MCQ for Class 11 Physics Chapter 14 : MCQs for Class 11 Physics Chapter 14 Oscillations with Answers PDF Free Download prepared here according to the latest CBSE RBSE and Other State Board syllabus and NCERT Books.

## MCQ for Class 11 Physics Chapter 14 Oscillations with answer

Q1. In SHM, the acceleration is directly proportional to

a) displacement
b) time
c) linear velocity
d) frequency

a) displacement

Q2. The displacement of a particle in simple harmonic motion in one time period is [A = amplitude]

a) Zero
b) 4 A
c) 2 A
d) A

a) Zero

Q3. For a body executing simple harmonic motion, which parameter comes out to be non-periodic ?

a) None of these
b) Velocity
c) Displacement
d) Acceleration

a) None of these

Q4. A system exhibiting SHM must possess

a) elasticity as well as inertia
b) elasticity, inertia and an external force
c) elasticity only
d) inertia only

a) elasticity as well as inertia

Q5. A particle moves in a circular path with a uniform speed. Its motion is

a) periodic
b) oscillatory
c) simple harmonic
d) angular simple harmonic

a) periodic

Q6. The motion which is not simple harmonic is

a) motion of a planet around the Sun
b) oscillation of liquid column in a U-tube
c) motion of simple pendulum
d) vertical oscillations of a spring

a) motion of a planet around the Sun

Q7. Select the incorrect statement(s) from the following.
I. A simple harmonic motion is necessarily periodic.
II. A simple harmonic motion may be oscillatory
III. An oscillatory motion is necessarily periodic

a) II and III
b) I and II
c) I only
d) I and III

a) II and III

Q8. In damped oscilation the directions of the restoring force and the resistive force

(a) are the same
(b) are opposite
(c) may be same or opposite
(d) have no relation with each other

(c) may be same or opposite

Q9. The displacement y of a particle executing periodic motion is given by y = 4 cos² (t/2) sin (1000t). This expression may be considered to be a result of superposition of the following number of harmonic motions.

(a) two
(b) three
(c) four
(d) five

(b) three

Q10. Spring is pulled down by 2 cm. What is amplitude of motion?

(a) 0 cm
(b) 6 cm
(c) 2 cm
(d) cm

(c) 2 cm

Q11. One of the two clocks on the earth is controlled by a pendulum and other by a spring. If both the clocks are taken to the moon, then which clock will have the same time – period of the earth?

(a) spring clock
(b) pendulum clock
(c) both
(d) none

(a) spring clock

Q12. When a particle performing uniform circular motion of radius 10 cm undergoes the SHM, what will be its amplitude?

(a) 10 cm
(b) 5 cm
(c) 2.5 cm
(d) 20 cm

(a) 10 cm

Q13. For a magnet of time period T magnetic moment is M, if the magnetic moment becomes one fourth of the initial value, then the time period of oscillation becomes.

(a) Half of initial value
(b) One fourth of initial value
(c) Double of initial value
(d) Four time initial value

(c) Double of initial value

Q14. Time period of simple pendulum of length l and a place where acceleration due to gravity is g is T. what is the period of a simple pendulum of the same length at a place where the acceleration due to gravity is 1.029 is,

(a) T
(b) 1.02 T
(c) 0.99 T
(d) 1.01 T

(c) 0.99 T

Q15. Suppose a tunnel is dug along a diameter of the earth. A particle is dropped from a point, a distance h directly above the tunnel, the motion of the particle is

a) oscillatory
b) simple harmonic
c) parabolic
d) non-periodic

a) oscillatory

Q16. The graph plotted between the velocity and displacement from mean position of a particle executing SHM is

a) ellipse
b) straight line
c) circle
d) parabola

a) ellipse

Q17. A body executing linear simple harmonic motion has a velocity of 3 m/s when its displacement is 4 cm and a velocity of 4 m/s when its displacement is 3 cm. What is the amplitude of oscillation ?

a) 5 cm
b) 7.5 cm
c) 10 cm
d) 12.5 cm

a) 5 cm

Q18. Assertion : A particle executing simple harmonic motion comes to rest at the extreme positions .
Reason : The resultant force on the particle is zero at these positions

a) Assertion is correct, reason is incorrect
b) Assertion is incorrect, reason is correct
c) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
d) Assertion is correct, reason is correct; reason is a correct explanation for assertion

a) Assertion is correct, reason is incorrect

Q19. In damped oscilation the directions of the restoring force and the resistive force

(a) are the same
(b) are opposite
(c) may be same or opposite
(d) have no relation with each other

(c) may be same or opposite

Q20. The displacement y of a particle executing periodic motion is given by y = 4 cos² (t/2) sin (1000t). This expression may be considered to be a result of superposition of the following number of harmonic motions.

(a) two
(b) three
(c) four
(d) five

(b) three

Q21. Spring is pulled down by 2 cm. What is amplitude of motion?

(a) 0 cm
(b) 6 cm
(c) 2 cm
(d) cm

(c) 2 cm

Q22. One of the two clocks on the earth is controlled by a pendulum and other by a spring. If both the clocks are taken to the moon, then which clock will have the same time – period of the earth?

(a) spring clock
(b) pendulum clock
(c) both
(d) none

(c) 2 cm

Q23. When a particle performing uniform circular motion of radius 10 cm undergoes the SHM, what will be its amplitude?

(a) 10 cm
(b) 5 cm
(c) 2.5 cm
(d) 20 cm

(a) 10 cm

## MCQ Questions for Class 11 Physics Multiple Choice Questions with Answers

CBSE RBSE Gujarat Board UP Board Bihar Board MP Board Hariyana Board Panjab Board NCERT Objective MCQ Questions of Class 11 Physics with Answers PDF. 