Reflection and Refraction of Plane Wave at a Plane Surface Using Wave Fronts

A Prism has reflecting angle of 60° when a ray is incident at 50° it suffer minimum deviation (Sm). The value of Sm is

Explain refraction of light on the basis of wave theory. Hence prove the laws of refraction

Determine the change in wavelength of light during its passage from air to glass. If the refractive index of glass with respect to air is 1.5 and the frequency of light is 3.5 x 10¹⁴ Hz, find the wave number of light in glass.

[Velocity of light in air c = 3 x 10⁸ m/s]

A wavefront AB passing through a system C emerges as DE. The system C could be:

A piano convex lens is made of refractive index 1.6. The radius of curvature of the curved surface is 60 cm. The focal length of the lens is

At point A on the earth's surface the angle of dip, d = +25°. At a point Bon the earth's surface the angle of dip, d = −25°. We can interpret that

(a) A ray of light is incident normally on the face AB of a right-angled glass prism of refractive index _aμ_g 1.5. The prism is partly immersed in a liquid of an unknown refractive index. Find the value of the refractive index of the liquid so that the ray grazes along the face BC after refraction through the prism.

(b) Trace the path of the rays if it were incident normally on the face AC.

If the critical angle for total internal reflecting from medium to vacuum is 30, the velocity of light n the medium is