Asked by  | 11th Apr, 2008, 11:28: PM

Expert Answer:

If first order minimum is at λ/a and first order maximum is at same position

λ/a = 3λ1/2a

Then λ1 = λ2/3 = 6000 A0

Answered by  | 18th Apr, 2008, 01:54: PM

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