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Coherent sources A and B emit electromagnetic waves with wavelength 2.00cm . Point P is 4.86m from A and 5.24m from B. What is the phase difference at P between these two waves?

Short Answer

Expert verified

The phase difference between the two waves at point P is 38πad.

Step by step solution

01

Formula for phase difference

ϕ=r*+2πλ

02

Calculate the phase difference

Given: λ=2.0cm=2.0*10-2mrPA=r1=4.86mrPB=r1=4.86m

Now, the phase difference is given by

ϕ=r*2πλϕ=(r2-r1)πλ

Plug the given,

ϕ=(5.24-4.86)2.0*10-2=38πrad

Thus, the phase difference between the two waves at point P is38πad .

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