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A parallel beam of monochromatic light i...

A parallel beam of monochromatic light is used in a Young's double slit experiment. The slits are separated by a distance d and the screen is placed parallel to the plane of the slits. Show that if the incident beam makes an angle `theta=sin^-1(lamda/(2d))` with the normal to the plane of the slits, there will be a dark fringe at the centre Po of the pattern.

A

1/4the maximum intensity

B

half the maximum intensity

C

bright

D

dark

Text Solution

Verified by Experts

The correct Answer is:
D
Dark fringe
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