MCQ
The fringe width in Young's double-slit experiment can be increased if we decrease
- ✓Separation of the slits
- BDistance between the source and the screen
- CWavelength of the source
- DAll of these
✓
Answer
Correct option: A.
Separation of the slits
a
(a)
(a)
Fringe width $(\beta)=\frac{\lambda D}{d}$
Hence if we decrease $d\left(\beta \propto \frac{1}{d}\right)$
$\beta$ is increased.
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