For an interference pattern, the maximum and minimum intensity ratio is 64:1, then what will be the ratio of amplitudes?

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MARKS Content Team · Accepted Answer

Correct answer: (B) 9:7. Since, we know, I_max/I_max=a^(1a2+1a1a2-12) Given, I_max/I_min=64/1 ⇒64/1=a^(1+a2a1-a22) ⇒(a_1+a_2)/(a_1-a_2)=8 ⇒a_1/a_2=(8+1)/(8-1)=9/7 ∴ a_1/a_2=9/7

For an interference pattern, the maximum and minimum intensity ratio is $64 : 1$ , then what will be the ratio of amplitudes?

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