Optics Question 1011

Question: If the amplitude ratio of two sources producing interference is 3 : 5, the ratio of intensities at maxima and minima is

[MP PMT 1996]

Options:

A) 25 : 16

B) 5 : 3

C) 16 : 1

D) 25 : 9

Show Answer

Answer:

Correct Answer: C

Solution:

a1a2=35

∴ImaxImin=(a1+a2)2(a1−a2)2=(3+5)2(3−5)2=161

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