In Young's double slit experiment, if the source of light changes… - Vidyadip

MCQ

In Young's double slit experiment, if the source of light changes from orange to blue then

A
the central bright fringe will become a dark fringe.
✓
the distance between consecutive fringes will decrease.
C
the distance between consecutive fringes will increase.
D
the intensity of the minima will increase.

✓

Answer

Correct option: B.

the distance between consecutive fringes will decrease.

b
Fringe width $\beta=\frac{\lambda D}{d}$

as $\lambda$ decreases, $\beta$ also decreases

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