Question

The wings of mosquito vibrates 250 times in 15 seconds find their frequency and time period

Answer 1

frequency=no. of vibrations per second=250/15=16.67Hz

time period=1/freq

hence, time period=1/16.67=0.06s

Answer 2

time period =time/vibration=15/250=0.06. frequency =vibration /time =250/15=16.6666