An interference pattern was made by using red light. If the red l… - Vidyadip

MCQ

An interference pattern was made by using red light. If the red light changes with blue light, the fringes will become

A
Wider
✓
Narrower
C
Fainter
D
Brighter

✓

Answer

Correct option: B.

Narrower

b
(b)$\beta = \frac{{\lambda D}}{d} \Rightarrow \beta \propto \lambda $

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