MCQ
In Young's double-slit experiment, the slit separation is reduced to half while the distance of the screen from the slits is increased by $50 \%$. In terms of the initial fringe width, W, the new fringe width is,
- A$\frac{1}{4} W$
- B$\frac{3}{4} W$
- C$\frac{3}{2} W$
- ✓$3 W$.