When a ray of light is refracted by a prism such that the angle of deviation is minimum, then _______________.

the angle of emergence is greater than angle of incidence.

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the angle of emergence is equal to the angle of incidence.

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the angle of emergence is smaller than angle of incidence.

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the sum of the angle of incidence and the angle of emergence is equal to

90^{0}

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Solution

The correct option is B the angle of emergence is equal to the angle of incidence.
A ray of light passing through a prism deviates with the minimum amount only when the angle of incidence of light is equal to angle of emergence of light through the second face of prism.

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Similar questions

Q. The angle of minimum deviation is attained when the angle of incidence is ______ angle of emergence for a ray of light being refracted through a prism.

Q. A ray of light passes through an equilateral prism (refractive index 1.5) such that angle of incidence is equal to angle of emergence and the latter is equal to

{3 / 4}^{t h}

of the angle of prism. The angle of deviation is

A ray of light passes through an equilateral glass prism, such that the angle of incidence is equal to the angle of emergence. If the angle of emergence is 3/4 times the angle of the prism. Find the angle of deviation.

Q. The angle of deviation through a prism is minimum when

(A) Incident ray and emergent ray are symmetric with respect to the prism.
(B) The refracted ray inside the prism becomes parallel to its base.
(C) Angle of incidence is equal to angle of emergence.
(D) When the angle of emergence is double the angle of incidence.
Choose the correct answer from the options given below:

Q. A ray of light passes through equilateral prism

(μ = 1.5)

such that angle of incidence is equal to angle of emergence and the later is equal to

3 / 4^{t h}

of prism angle. The angle of deviation is : -

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When a ray of light is refracted by a prism such that the angle of deviation is minimum, then _______________.

The correct option is B the angle of emergence is equal to the angle of incidence.A ray of light passing through a prism deviates with the minimum amount only when the angle of incidence of light is equal to angle of emergence of light through the second face of prism.

The correct option is B the angle of emergence is equal to the angle of incidence.
A ray of light passing through a prism deviates with the minimum amount only when the angle of incidence of light is equal to angle of emergence of light through the second face of prism.