Thickness of the glass of a spectacle is 2mm and refractive index of glass is1.5.Calculate the time taken by light to cross this thickness

Light travels through a glass plate of thickness t and refractive index mu. If c is the speed of light in vacuum, the time taken by light to travel this thickness of glass is

One side of a glass slab is silvered as shown in figure. A ray of light is incident on the other side at angle of incident i=30^(@) . Refractive index of glass is given as 1.5 the deviation of the ray of light from its intial path when it comes out of slab is

If the refractive indices of glass and water with respect to air is 3/2 and 4/3 respectively. Calculate the velocity of light in glass and water.From these results calculate the refractive index of glass with respect to water. Given velocity of light in air is 3 xx 10^8m//s .

Calculate the refractive index of water with respect to glass and refractive index of glass with respect to water, if speed of light in water and glass is 2.2 xx10^(8)" m/s and "2xx10^(8)" m/s" respectively.

When the same monochromatic ray of light travels through glass slab and through water, the number of waves in glass slab of thickness 6 cm is same as in water column of height 7 cm. If refractive index of glass is 1.5 , then refractive index of water is

A ray of light is incident normally on a glass slab of thickness 5 cm and refractive index 1.6. The time taken to travel by a ray from source to surface of slab is same as to travel through glass slab. The distance of source from the surface is

Green light of wavelength 5460Å is incident on an air glass interface. If the refractive index of glass is 1.5, the wavelength of light in glass would be (C=3 xx 10^(8) ms^(-1)) n

If the absolute refractive index of glass is 1.5 and that of water is 4/3, find the refractive index of water with respect to glass.

For a glass plate as a polarizer with refractive index 1.633 , calculate the angle of incidence at which light is polarised .