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Q.

Statement - I :For best contrast between maxima and minima in the interference pattern of Young’s double slit experiment, the intensity of light emerging out of the two slits should be equal 
Statement - II :The intensity of interference pattern is proportional to square of amplitude.

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a

Both statements I and II are correct

b

Statement-I is incorrect and statement-II is correct

c

Both statements I and II are incorrect

d

Statement-I is correct and statement-II is incorrect

answer is B.

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Detailed Solution

When intensity of light emerging from two slits is equal, the intensity at minima,

 I1-I22=0

is best for good contrast.Hence I1=I2

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Statement - I :For best contrast between maxima and minima in the interference pattern of Young’s double slit experiment, the intensity of light emerging out of the two slits should be equal Statement - II :The intensity of interference pattern is proportional to square of amplitude.