A wave frequency 400 hz has a wave velocity of 300m/s. The phase difference between two displacement at certain point at time t=10^-3 s apart is A wave frequency 400 hz has a wave velocity of 300m/s. The phase difference between two displacement at certain point at time t=10^-3 s apart is September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 17 - Wave Motion , Volume 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related