1.

Two waves with wavelength lamda have phase difference of 60° at the point of superposition. Find path difference between them.

Answer»

`lamda/6`
`lamda/2`
`2lamda`
`lamda/4`

SOLUTION :We have `Delta PHI = (2PI)/(lamda) (Delta x)`
`THEREFORE (PI )/(3) = (2pi )/( lamda ) (Delta x)`
`therefore Delta x = (lamda )/(6)`


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