Oscillations MCQ Questions for Class 11 Physics Chapter 14 with Answers

NCERTCOURSE.COM given here the NCERT chapter-wise Multiple Choice Questions from Class 11 Physics book Chapter 14 Oscillations with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Oscillations. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

MCQ Class 11 Physics Chapter 14 With Answers

Q1. In S.H.M., the particle is

(i) always accelerated
(ii) always retarded.
(iii) neither accelerated nor retarded.
(iv) accelerated and retarded alternately.

(iv) accelerated and retarded alternately.

Q2. Grap of potential energy vs. displacement of a S.H. Oscillator is

(i) parabolic
(ii) hyperbolic
(iii) elliptical
(iv) linear

(i) parabolic

Q3. In the case of forced oscillations, which of the following statements is not true?

(i) frequency equals that of external periodic force
(ii) amplitude depends upon the damping coefficient
(iii) amplitude tends to infinity at resonance
(iv) higher the damping coefficient, lower is the amplitude at resonance

(iii) amplitude tends to infinity at resonance

Q4. In SHM, the acceleration is directly proportional to

(i) displacement
(ii) time
(iii) linear velocity
(iv) frequency

(i) displacement

Q5. Which of the following characteristics does not change due to the damping of S.H.M.?

(i) Amplitude
(ii) Time period
(iii) Angular frequency
(iv) Initial phase

(iv) Initial phase

Q6. The acceleration of particle executing S.H.M. when it is at mean position is

(i) Infinite
(ii) Varies
(iii) Maximum
(iv) Zero

(iv) Zero

Q7. 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.

(i) Half of initial value
(ii) One fourth of initial value
(iii) Double of initial value
(iv) Four time initial value

(iii) Double of initial value

Q8. A system exhibiting SHM must possess

(i) elasticity as well as inertia
(ii) elasticity, inertia and an external force
(iii) elasticity only
(iv) inertia only

(i) elasticity as well as inertia

Q9. Which of the following quantities connected with S.H.M. do not vary periodically?

(i) Displacement
(ii) Velocity
(iii) Acceleration
(iv) Total energy

(iv) Total energy

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

(i) 0 cm
(ii) 6 cm
(iii) 2 cm
(iv) cm

(iii) 2 cm

Q11. In damped oscilation the directions of the restoring force and the resistive force

(i) are the same
(ii) are opposite
(iii) may be same or opposite
(iv) have no relation with each other

(iii) may be same or opposite

Q12. The motion which is not simple harmonic is

(i) motion of a planet around the Sun
(ii) oscillation of liquid column in a U-tube
(iii) motion of simple pendulum
(iv) vertical oscillations of a spring

(i) motion of a planet around the Sun

Q13. Resonant vibrations are a special case of:

(i) free vibrations
(ii) natural vibrations
(iii) forced vibrations
(iv) damped vibrations

(iii) forced vibrations

Q14. A simple pendulum of length l and mass (bo(ii) m is suspended vertically. The string makes an angle q with the vertical. The restoring force acting on the pendulum, is

(i) mg tan θ
(ii) mg sin θ
(iii) -mg sinθ
(iv) -mg cosθ

(iii) -mg sinθ

Q15. Length of a simple pendulum executing simple harmonic motion is increased by 21%. The percentage increase in the time – period of the pendulum of increased length is

(i) 10%
(ii) 1%
(iii) 21%
(iv) 42%

(i) 10%

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

(i) ellipse
(ii) straight line
(iii) circle
(iv) parabola

(i) ellipse

Q17. A pendulum clock is in a lift falling freely. Then

(i) it runs slower.
(ii) it runs faster.
(iii) it keeps correct time.
(iv) no oscillations occur and the clock does not operate at all.

(iv) no oscillations occur and the clock does not operate at all.

Q18. If an simple pendulum oscillates with an amplitude of 50 mm and time period of 2s, then its maximum velocity is

(i) 0.10 m/s
(ii) 0.16 m/s
(iii) 0.25 m/s
(iv) 0.5 m/s

(ii) 0.16 m/s

Q19. In SHM, graph of which of the following is a straight line?

(i) T.E. against displacement
(ii) P.E. against displacement
(iii) Acceleration against time
(iv) Velocity against displacement

(i) T.E. against displacement

Q20. The total energy of the particle executing simple harmonic motion of amplitude A is 100 J. At a distance of 0.707 A from the mean position, its kinetic energy is

(i) 50 J
(ii) 100 J
(iii) 12.5 J
(iv) 25 J

(i) 50 J

Q21. A simple pendulum has time period T on the surface of earth. When it is taken to a height h, then its time period will be

(i) constant
(ii) more than T
(iii) less than
(iv) None of the above

(ii) more than T

Q22. Grap of potential energy vs. displacement of a S.H. Oscillator is

(i) parabolic
(ii) hyperbolic
(iii) elliptical
(iv) linear

(i) parabolic

Q23. When the displacement of a particle executing simple harmonic motion is half of its amplitude, the ratio of its kinetic energy to potential energy is

(i) 3 : 1
(ii) 1 : 2
(iii) 2 : 1
(iv) 1 : 3

(i) 3 : l

Q24. A ball is dropped in a tunnel dug along the diameter of earth. When it is at the centre of earth, then it has

(i) mass
(ii) acceleration
(iii) weight
(iv) kinetic energy

(i) and (iv).

Q25. A pendulum suspended from the roof of a train has a period T (When the train is at rest). When the train is accelerating with a uniform acceleration a, the time period of the pendulum will

(i) Increase
(ii) Decrease
(iii) Remain unaffected
(iv) Become infinite

(ii) Decrease

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Class 11 Physics MCQ Questions Chapter wise with Answers

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