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Question

Question: If the intensities of the two interfering beams in Young's double slit experiment be I<sub>1</sub> a...

If the intensities of the two interfering beams in Young's double slit experiment be I1 and I2, then the contrast between the maximum and minimum intensity is good when –

A

I1 is much greater than I2

B

I1 is much smaller than I2

C

Either I1 or I2 is zero

D

I1 = I2

Answer

I1 = I2

Explanation

Solution

For good visibility condition is

Imin = 0 ̃ I1=I2\begin{matrix} I_{1} = I_{2} \end{matrix}