Total Internal Reflection and Prism

IMPORTANT

Total Internal Reflection and Prism: Overview

This topic covers concepts, such as, Total Reflecting Prisms, TIR in Prisms & Erecting Prism etc.

Important Questions on Total Internal Reflection and Prism

MEDIUM
IMPORTANT

For an angle of incidence θ on an equilateral prism of refractive index 3. The ray refracted is parallel to the base inside the prism. The value of θ is 

EASY
IMPORTANT

The angle of minimum deviation for an incident light ray on an equilateral prism is equal to its refracting angle. The refracting index of its material is

MEDIUM
IMPORTANT

At whole angle should a ray of light be incident on the face of a prism of refracting angle, so that it just suffers total internal reflection at the other face i. The refracting index of the material of the prism is 1.524.

EASY
IMPORTANT

The refractive index of the material of an equilateral prism is 3. What is the angle of minimum deviation δ.

EASY
IMPORTANT

A ray of light incident on one of the faces of a glass prism of angle it has angle of incidence 2A. The refracted ray in the prism strikes the opposite face which is silvered the reflected ray from it retracing its path. Trace the ray diagram and find the relation between the refractive index of the material of the prism and the angle of prism.

MEDIUM
IMPORTANT

Two monochromatic rays of light are incident normally on the face AB Of an isosceles right-angled prism ABC. The refractive indices of the glass prism for the two rays 1 and 2 Are respectively 1.35 and 1.45. Trace the path of these rays after entering through the prism.

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EASY
IMPORTANT

Figure shows a mixture of blue-green and red coloured rays, incident normally on a right-angled prism. The critical angles of the materials of the prism for red, green and blue are 46o44o and 43o Respectively. The arrangement will separate-

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MEDIUM
IMPORTANT

Two parallel light rays are incident at one surface of a prism as shown in the figure. The prism is made of glass of refractive index 1.5. The angle between the rays as they emerge is nearly.

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EASY
IMPORTANT

A beam of light consisting of red, green and blue colours is incident on a right-angled prism. The refractive index of the material of a prism for red, green and blue wavelengths are 1:391.44 and 1.47 Respectively. The prism will____

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EASY
IMPORTANT

A light ray is incident perpendicularly to one face of a 90o Prism and is totally internally reflected at the glass-air interface. If the angle of reflection is 45o, we conclude that the refractive index μ.

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