# A wave of frequency 500 Hz has wave velocity of 350 m/s. 1)Find the distance between the two points which has #60^o# out of phase. 2)Find the phase difference between two displacements at certain point of time #10^-3#s apart?

##### 1 Answer

Jun 1, 2017

Given velocity of the wave

frequency of the wave

So wave length of the wave

**1)** We are to find the distance between the two points which has

As we know that for path difference

we can say , if

2) Now in

So here path difference

So by the relation