A tuning fork is hit with a force of 10 N. It vibrates to produce a sound of 50 Hz frequency. The number of vibrations made by the tuning fork in 5 sec would be _____.
The correct option is C 250 Given FRequency of sound wave = 50 Hz The number of vibrations made by tuning fork is equal to frequency of the sound wave. Thus number of vibrations made by tuning fork = 50 per second. Total number of vibrations in 5 sec = 50 x 5 = 250 vibrations.