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

Question:

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

1. the central bright fringe will become a dark fringe.

2. the distance between consecutive fringes will decrease

3. the distance between consecutive fringes will increase.

4. the intensity of the minima will increase.

Correct Option: , 2

Solution:

Sol. Fringe width $=\lambda \mathrm{D} / \mathrm{d}$

as $\lambda$ decreases, fringe width also decreases