Refraction of Light

The frequency of a light wave in a material is $2\times {10}^{14} \mathrm{Hz}$ and wavelength is $5000 \stackrel{\circ }{\mathrm{A}}$. The refractive index of material will be

A ray of light falls on a transparent glass slab of refractive index $1.62$. If the reflected ray and the refracted ray are mutually perpendicular, the angle of incidence is

A ray of light passes from vacuum into a medium of refractive index $\mu$, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is

When a ray of light enters a glass slab from air

When a ray of light enters a glass slab from air

When a beam of light $\left(\mathrm{\lambda }=6000 \stackrel{\mathrm{o}}{\mathrm{A}}\right)$ travelling in air enters a glass medium $\left(\mu =1.5\right)$, the wavelength of light in glass, would be

The distance travelled by light in glass (refractive index $1.5$) in a $\mathrm{nano} \mathrm{second}$ will be 

An air bubble in a glass slab $\left(\mu =1.5\right)$ is $5 \mathrm{cm}$ deep when viewed from one face and $2 \mathrm{cm}$ deep when viewed from the opposite face. The thickness of the slab is