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