1.

Two lightsources have intensity of light as I_(0), What is the intensity at a point where the two light waves have a phase difference of pi//3?

Answer»

Solution :LET the INTENSITIES be `I_(0)`.
The resultant intensity is, `I=4I_(0)COS^(2)(phi//2)`
Resultant intensity when, `phi=pi//3,isI=41_(0)cos^(2)(pi//6)`
`1=41_(0)(sqrt(3)//2)^(2)=31_(0)`


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