An isosceles prism has one of the refracting surfaces silvered. A ray of light is incident normally on the refracting face AB. After two reflections, the ray emerges from the base of the prism perpendicular to it. Find the angle of the prism.

The cross section of a glass prism has the form of an isosceles triangle. One of th erefracting faces is silvered. A ray of light falling normally on the other refracting face, being reflected twice, emerges through the base of the prism perpendicular to it. Find the angles of the prism.

The cross section of a glass prism has the form of an isosceles triangle. One of th erefracting faces is silvered. A ray of light falling normally on the other refracting face, being reflected twice, emerges through the base of the prism perpendicular to it. Find the angles of the prism.

The principal section of a glass prism is an isosceles triangle ABC with AB = AC. The face AC is silvered. A ray of light is incident normally on the face AB and after two reflections, it emerges from the base BC perpendicular to the base. Angle BAC of the prism’ is

When a ray of light is incident normally on one refracting surface of an equilateral prism (Refractive index of the material of the prism =1.5

When a ray of light is incident normally on one refracting surface of an equilateral prism (Refractive index of the material of the prism =1.5 )