Wave Optics

JEE Main level, single correct, medium

85 of 191

Question 85 of 191

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

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Answer: (B) the distance between consecutive fringes will decrease.

Fringe width =λDd=\dfrac{\lambda D}{d}.
As λ\lambda decreases, fringe width also decreases.

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