Optics Question 1005

Question: The ratio of intensities of two waves is 9 : 1. They are producing interference. The ratio of maximum and minimum intensities will be

[MNR 1987 MP PET 1999; AMU (Engg.) 1999; AIIMS 2000]

Options:

A) 10 : 8

B) 9 : 1

C) 4 : 1

D) 2 : 1

Show Answer

Answer:

Correct Answer: C

Solution:

ImaxImin=(I1I2+1I1I21)2=(91+1911)=41



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