JEE Main 2012 Physics question
In Young's double slit experiment, one of the slit is wider than other, so that the amplitude of the light from one slit is double of that from other slit. If be the maximum intensity, the resultant intensity I when they interfere at phase difference ϕ is given by
Answer: (4)
Solution
Amplitudes 2a and a: , and . Using :
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