MCQ
In Fresnel’s biprism experiment, on increasing the prism angle, fringe width will
- AIncrease
- ✓Decrease
- CRemain unchanged
- DDepend on the position of object
✓
Answer
Correct option: B.
Decrease
b
(b)Fringe width $(\beta ) \propto \frac{1}{{{\rm{prism Angle }}(\alpha )}}$
(b)Fringe width $(\beta ) \propto \frac{1}{{{\rm{prism Angle }}(\alpha )}}$
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