1. . Time period of simple pendulum is
(A) 2π√(l/g)
(B) π√(2l/g)
(C) π√(l/g)
(D) π√(g/l)
2. . Which of the following substance has relatively high value of elasticity?
(A) Steel
(B) Rubber
(C) Air
(D) Gold
3. . The waveform of S.H.M is similar to
(A) Cosine wave
(B) Square wave
(C) Pulsed waves
(D) Sine 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) 0.5 Hertz
(B) 2 Hertz
(C) 1 Hertz
(D) 0.25 Hertz
7. . The length of second’s pendulum is
(A) 1 m
(B) 0.5 m
(C) 0.992 m
(D) 0.6 m
8. . In a vibrating string, the points where the amplitude is maximum is called
(A) Crest
(B) Antinode
(C) Trough
(D) Node
9. . The distance between two consecutive nodes is
(A) 2λ
(B) λ/4
(C) λ
(D) λ/2
10. . The wavelength of the fundamental mode of vibration in a string is
(A) l
(B) 4l
(C) 2l
(D) λ/2
11. . The unit of stress is
(A) N/m
(B) newton
(C) N/m²
(D) joule
12. . The example of S.H.M is
(A) Motion of a train
(B) Motion of a simple pendulum
(C) Motion of a fan
(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) Rotational energy
(B) Vibrational energy
(C) P.E
(D) K.E
15. . The time period of simple pendulum depends upon:
(A) Mass
(B) Weight
(C) Amplitude
(D) Length
16. . The frequencies other than Fundamental frequency are called:
(A) Harmonics
(B) Triangle
(C) Crest
(D) 2λ
17. . The distance between a node and an anti-node is
(A) 0.25λ
(B) 0.5λ
(C) λ
(D) Amplitude