A ray of lght strikes a glass plate at an angle of incidence `57^@`.If the reflected and refracted rays are perpendicular to each other,find the refractive index of glass.

A ray of ligth is incidentt on a glas plate at an angle of 60^@ .What wouldd be the refractive index of glss,if refleted nd refracted rays are prependicular to each other?

At what angle of incidence should light beam strike a glass slab of refractive index (mu=sqrt3) , such that the reflected and refracted rays are perpendicular to each other?

A ray of light falls on a transparent glass slab of refracative index 1.62. If the reflected ray and refracted rays are mutually perpendicular. What is the angle of incidence? Give calculations.

State Brewter's law.Show that the reflected ray and the refracted ray are perpendicular to each other,when the angle of incidene is equal to polarising angle.

A ray of light strikes a plane mirror at an angle of incidence 45^@ as shown in the figure 9.115. After reflection, the ray of passess through a prism of refractive index 1.5 whose apex angle is 4^@ . Through what angle must the mirror be rotated if the total deviation of hte ray be 90^@ ?

A ray of light is incident on a medium at polarising angle .What is the angle betweeen the relfected and refracted rays?

A ray strikes the mirror normally, what is the angle of incidence?

Out of red and blue lights, for which colour is the refractive index of glass greater?

Show that at polarising angle, the reflected and refracted beams of light are at 90^@ to each other.