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Byju's Answer

Standard XII

Physics

Deviation in Prism

A ray of ligh...

Question

A ray of light $O P$ passes through a right angled prism as shown in the diagram. Name the phenomenon which the ray suffers at the face $A C$ .

Total Internal Reflection

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Minimum Deviation

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Refraction

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Dispersion

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Solution

The correct option is A Total Internal Reflection
The light strikes AC at with an angle of incidence $45^{o}$ which is greater than the critical angle of glass i.e. $42^{o}$ hence it undergoes total internal reflection.

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Similar questions

Q. A ray of light

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passes through a right angled prism as shown in the adjacent diagram. State the angles of incidence at the faces

A C

and

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42^{o}

In Fig. 4.67, a ray of light PQ is incident normally on the face AB of an equilateral glass prism. Complete the ray diagram showing its emergence into air after passing through the prism. Take critical angle for glass = $42^{\circ}$ .

(a) Write the angles of incidence at the faces AB and AC of the prism.

(b) Name the phenomenon which the ray of light suffers at the face AB, AC and BC of the prism.

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Q. A ray of light passes through a right angled prism as shown in the figure. State the angle incidence at the faces AC and BC are

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A ray of light OP passes through a right angled prism as shown in the diagram. Name the phenomenon which the ray suffers at the face AC.

The correct option is A Total Internal ReflectionThe light strikes AC at with an angle of incidence 45o which is greater than the critical angle of glass i.e. 42o hence it undergoes total internal reflection.

A ray of light $O P$ passes through a right angled prism as shown in the diagram. Name the phenomenon which the ray suffers at the face $A C$ .

The correct option is A Total Internal Reflection
The light strikes AC at with an angle of incidence $45^{o}$ which is greater than the critical angle of glass i.e. $42^{o}$ hence it undergoes total internal reflection.