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Figure shows two coherent microwave source S₁ and S₂ emitting waves of wavelength and separated by a distance 3 . For D and y 0 , the minimum value of y for point P to be an intensity maximum is m D n . Determine the value of m + n , if m and n are coprime numbers.

Correct answer

7

Step-by-step solution

Path difference =3 =2 = 2 3 ; y = D = D 5 2 ~m + n =5+2=7

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