a progressive wave of frequency 500 Hz is travelling with a speed of 350 m/s a compressional maximum - Physics - Wave Optics

Question

a progressive wave of frequency 500 Hz is travelling with a speed
of 350 m/s a compressional maximum appears at a place at a given
instant the minimum time interval after which of refraction maximum
occurs at the same place is

Deepak · Answer

frequency=1/time period
t=1/500
=0 002sec
sine compression alternates with rarefraction so again compression
appears after t/2secs=0 001secs
ans=0 001seconds

a progressive wave of frequency 500 Hz is travelling with a speed of 350 m/s . a compressional maximum appears at a place at a given instant . the minimum time interval after which of refraction maximum occurs at the same place is