Two waves of frequencies 20 Hz and 30 Hz. Travels out from a common point. The phase difference between them after 0.6 sec is

Two waves of frequencies 20 Hz and 30 Hz travel out from a common point. How wil they different phase at the end of 0.75 s ?

Two waves of frequencies 30 Hz and 40 Hz travel out from a common point. How they will differ in phase at the end of 0.95 s

Two waves of frequencies 6 Hz and 10 hz are superposed. The beat frequency produced is

Two waves of frequencies 6 Hz and 10 hz are superposed. The beat frequency produced is

A wave of frequency 400 Hz has a phase velocity of 300 m/s The phase difference between two displacement at a certain point at time t= 10^(-3) s is

A wave of frequency 400 Hz has a phase velocity of 300 m/s The phase difference between two displacement at a certain point at time t= 10^(-3) s is

Wave of frequency 500 Hz has a phase velocity 360 m//s . The phase difference between two displacement at a certain point at time 10^(-3)s apart will be

Wave of frequency 500 Hz has a phase velocity 360 m//s . The phase difference between two displacement at a certain point at time 10^(-3)s apart will be