Two light sources have intensity of light as I .What is the resultant intensity at a point where the two light waves have a phase difference of 60 degree?
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Explanation:
Let the intensities be Io The resultant intensity is, I
= 4Io cos2 (φ/2) Resultant intensity when,
ϕ = π/ 3, is I
= 4Io cos2 (π / 6) I
= 4Io (√3 / 2)2 =3Io
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