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2 non-coherent sources emit light beam of intensities I and 4I. The maximum and minimum intensities in the resulting beam are a) 9I and 3I b) 9I and 5I c) 5I and I d) 5I and 3I

2 non-coherent sources emit light beam of intensities I and 4I. The maximum and minimum intensities in the resulting beam are a) 9I and 3I b) 9I and 5I c) 5I and I d) 5I and 3I

Grade:upto college level

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

The answer is D. 5I and 3I

Regards
Vikas TU
14149 Points
3 years ago
Dear student 
Above ans is wrong 
Dear student 
Imax = (sqrt I1 + sqrt I2)^2
=9I 
Imin = (sqrt I1 - sqrt I2) ^2
=I 
Good Luck 

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