Physics XI Karachi Board [Sound] MCQS Online Test - 1Physics Aptitude Test. 20 Questions from Chapter 08-B Sound.
Q1. The change in pitch of sound caused by the relative motion of either the source of sound or the listener is called
Q7. When two tuning forks frequencies are sounded simultaneously, then the number of beats produced per second is equal to
Q15. The observed (apparent) change in the pitch due to the relative between the source and the observer is called
Q19. The velocity of sound in air is 340 m/s. The frequency of fundamental mode emitted by an open end organ pipe of length 25 cm is