Chapter 3 WAVEMOTION MCQs 17 min Score: 0 Attempted: 0/17 Subscribe 1. . Time period of simple pendulum is: (A) π (B) √(l/g) (C) 2π√(l/g) (D) π√(g/l)Show All Answers 2. . Which of the following substance has relatively high value of elasticity? (A) Rubber (B) Steel (C) Air (D) GoldShow All Answers 3. . The waveform of S.H.M is similar to: (A) Cosine wave (B) Sine wave (C) Pulsed waves (D) Square waveShow All Answers 4. . The maximum distance of a vibrating body from mean position is called: (A) Time period (B) Displacement (C) Amplitude (D) FrequencyShow All Answers 5. . Time period of a second’s pendulum is: (A) Zero (B) 1 second (C) 2 seconds (D) 3 secondsShow All Answers 6. . The frequency of second’s pendulum is: (A) 1 Hz (B) 2 Hz (C) 0.5 Hz (D) 0.25 HzShow All Answers 7. . The length of second’s pendulum is: (A) 1 m (B) 0.5 m (C) 0.6 m (D) 0.992 mShow All Answers 8. . In a vibrating string, the points where the amplitude is maximum are called: (A) Crest (B) Trough (C) Antinode (D) NodeShow All Answers 9. . The distance between two consecutive nodes is: (A) λ/4 (B) λ/2 (C) λ (D) 2λShow All Answers 10. . The wavelength of the fundamental mode of vibration in a string is: (A) l (B) 2l (C) 4l (D) l/2Show All Answers 11. . The unit of stress is: (A) N/m (B) N/m² (C) Newton (D) JouleShow All Answers 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 wheelShow All Answers 13. . In S.H.M, the acceleration is always towards: (A) Right side (B) Left side (C) The center (D) NoneShow All Answers 14. . In S.H.M which form of energy is maximum at the center? (A) Rotational energy (B) Vibrational energy (C) Kinetic energy (D) Potential energyShow All Answers 15. . The time period of simple pendulum depends upon: (A) Mass (B) Weight (C) Length (D) AmplitudeShow All Answers 16. . The frequencies other than fundamental frequency are called: (A) Harmonics (B) Triangle (C) Crest (D) AmplitudeShow All Answers 17. . The distance between a node and an antinode is: (A) 0.25λ (B) 0.5λ (C) λ (D) 2λShow All Answers