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The ratio of amplitudes of two coherent waves in Young's double-slit experiment is A 1 A 2 = 1 3 . What is the ratio of maximum and minimum intensities of fringes?

Correct answer

04.00

Step-by-step solution

I max I min = I 1 + I 2 2 ( I 1 - I 2 ) 2 = A 1 + 3 A 1 A 1 - 3 A 1 2 I max I min = A 1 + 3 A 1 A 1 - 3 A 1 2 = 4 2 2 = 4

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