MCQ
A light wave is incident normally over a slit of width $24\times 10^{-5}\ cm$. The angular position of second dark fringe from the central maxima is $30^\circ$. What is the wavelength of light
- ✓$6000 \mathring A$
- B$5000 \mathring A$
- C$3000 \mathring A$
- D$1500 \mathring A$
