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In YDSE of equal width slits, if intensi...

In YDSE of equal width slits, if intensity at the center of screen is `I_(0)`, then intensity at a distance of `beta // 4` from the central maxima is

A

`(I_0)/(4)`

B

`(I_0)/2`

C

`3/4 I_0`

D

`2I_0`

Text Solution

Verified by Experts

The correct Answer is:
B
Phase difference at a point at a distance x from the central maxima, `Delta phi = 2 pi (x/(beta))`
Intensity at this point, `I = I_0 cos^2 ((Delta phi)/(2)) = I_0 cos^2 (pi/4) = (I_0)/2` .
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