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In Young's double-slit experiment, the t...

In Young's double-slit experiment, the two slits act as coherent sources of equal amplitude `A` and of wavelength `lamda`. In another experiment with the same set-up the two slits are sources of equal amplitude `A ` and wavelength `lamda`, but are incoherent. The ratio of the intensity of light at the midpoint of the screen in the first case to that in the second case is....

A

`2 : 1`

B

`1 : 2`

C

`3 : 4`

D

`4 : 3`

Text Solution

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The correct Answer is:
A
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