A parallel monochromatic beam of light is incident normally on a … - Vidyadip

MCQ

A parallel monochromatic beam of light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of incident beam. At the first maximum of the diffraction pattern the phase difference between the rays coming from the edges of the slit is

A
$0$
B
$\frac{\pi}{2}$
C
$\pi$
✓
$2 \pi$

✓

Answer

Correct option: D.

$2 \pi$

$2 \pi$

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