Physics Question 104 – AP-EAMCET 2026

Young’s double slit experiment is conducted in water. The refractive index of water is $1.33$. Wavelength of incident light is $6000\text{ Å}$ and the separation between the slits is $2\text{ mm}$. Fringe width is given by $0.63\text{ mm}$. The distance between screen and slits is