MCQ
In a Young's double slit experiment, the fringe width will remain same, if ($D =$ distance between screen and plane of slits, $d =$ separation between two slits and $\lambda =$ wavelength of light used)
- ABoth $\lambda$ and $D$ are doubled
- ✓Both $d$ and $D$ are doubled
- C$D$ is doubled but $d $ is halved
- D$\lambda$ is doubled but $d$ is halved
