MCQ
An interference pattern was made by using red light. If the red light changes with blue light, the fringes will become
- AWider
- ✓Narrower
- CFainter
- DBrighter
✓
Answer
Correct option: B.
Narrower
b
(b)$\beta = \frac{{\lambda D}}{d} \Rightarrow \beta \propto \lambda $
(b)$\beta = \frac{{\lambda D}}{d} \Rightarrow \beta \propto \lambda $
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