Physics

Problem

A ray of light traveling in air strikes a glass slab of thickness

0.1\,\text{m}

at an angle of incidence of

60^{\circ}

. The refractive index of the glass is

\sqrt{3}

. Determine the time taken by the light to cross the slab and emerge from the other side. (Take speed of light in vacuum

c = 3 \times 10^{8}\,\text{m/s}