1. Time period of simple pendulum is
(A) π√(2l/g)
(B) 2π√(l/g)
(C) π√(l/2g)
(D) π√(l/g)
2. Which of the following substances has relatively high value of elasticity?
(A) Rubber
(B) Gold
(C) Air
(D) Steel
3. The waveform of S.H.M is similar to
(A) Sine wave
(B) Cosine wave
(C) Pulsed waves
(D) Square wave
4. The maximum distance of a vibrating body from mean position is called
(A) Time period
(B) Amplitude
(C) Displacement
(D) Frequency
5. Time period of a second’s pendulum is
(A) Zero
(B) 1 Second
(C) 3 Seconds
(D) 2 Seconds
6. The frequency of second’s pendulum
(A) 1 Hertz
(B) 0.5 Hertz
(C) 2 Hertz
(D) 0.25 Hertz
7. The length of second’s pendulum is
(A) 1 m
(B) 0.992 m
(C) 0.6 m
(D) 0.5 m
8. In a vibrating string, the points where the amplitude is maximum is called
(A) Antinode
(B) Trough
(C) Crest
(D) Node
9. The distance between two consecutive nodes is
(A) λ/4
(B) 2λ
(C) λ
(D) λ/2
10. The wavelength of the fundamental mode of vibration in a string is
(A) 2l
(B) l
(C) 4l
(D) l/2
11. The unit of stress is
(A) N/m
(B) Joule
(C) Newton
(D) N/m²
12. The example of S.H.M is
(A) Motion of a train
(B) Motion of a fan
(C) Motion of a simple pendulum
(D) Motion of a wheel
13. In S.H.M, the acceleration is always towards
(A) Right side
(B) Left side
(C) None
(D) The center
14. In S.H.M, which form of energy is maximum at the center
(A) K.E
(B) Vibrational energy
(C) Rotational energy
(D) P.E
15. The time period of simple pendulum depends upon:
(A) Mass
(B) Weight
(C) Length
(D) Amplitude
16. The frequencies other than Fundamental frequency are called:
(A) Crest
(B) Triangle
(C) Harmonics
(D) Amplitude
17. The distance between a node and an anti-node is
(A) 0.25λ
(B) 0.5λ
(C) λ
(D) 2λ