20 Physics -- Reflection through Prisms

In a prism, what is the relation between angle of incidence, angle of emergence, refracting angle of prism and deviation produced?

1 Answers

Let i be the angle of incidence, e be the angle of emergence, A be the refracting angle of prism and δ be the deviation produced. In a prism,

i + e - A = δ

=> i + e = A + δ

Does the refraction of light from a small angled prism depend upon the angle of incidence?

What is minimum deviation in a prism? State the conditions for minimum deviation.

The condition when the angle of deviation between the incident ray and emergent ray is the least for a ray passing through a prism is considered as minimum deviation in a prism.

In the condition of minimum deviation,

angle of incidence (i) = angle of emergence (e)

angle of refraction at face 1 (r1) = angle of refraction at face 2 (r2)

angle of deviation = angle of minimum deviation

Define minimum deviation in a prism. Find an expression for the refractive index of a prism in condition of minimum deviation. Is this formula applicable in conditions other than minimum deviation?

Find the condition for no emergent of light from a prism.

Is it possible to describe two situations of total internal reflection in a right angled isosceles glass prism?

A glass prism is immersed in water. What happens to the value of angle of minimum deviation?

(I) The angle of a glass prism is 60°, and the minimum deviation of light through the prism is 39°. Calculate the refractive index of glass. (II) The refractive index of a glass prism is 1.66 and t...

A beam of white light passing through a hollow prism gives no spectrum. Give reason.

State the factors on which the deviation produced by a prism depend. Show that the deviation produced by a small angle prism for small angle of incidence is independent of angle of incidence. What...

A narrow beam of light is incident normally on one face of an equilateral prism (refractive index 1.45), the prism being surrounded by water (refractive index 1.33). At what angle the ray of light ...