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Byju's Answer

Standard X

Physics

Refraction through a Rectangular Glass Slab

In the diagra...

Question

In the diagram, the correctly marked angles are ______.

∠ i

and

∠ r

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∠ i

and

∠ e

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∠ r

and

∠ e

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∠ i

∠ r

and

∠ e

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Solution

The correct option is C $∠ i$ and $∠ r$
All the angles should be taken from the normal to the ray. So in the figure only $i$ and $r$ angles are marked with the normal and hence correct.

Angle $e$ is marked between the ray and the interface boundary so it is incorrect. Hence option (a) is the answer.

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Similar questions

After tracing the path of a ray of light through a glass prism a student marked the angle of incidence ( $∠$ i), angle of refraction ( $∠$ r) angle of emergence ( $∠$ e) and the angle of deviation ( $∠$ D) as shown in the diagram. The correctly marked angles are:

Q. In the following ray diagram the correctly marked angle are :

(a)

∠ i

and

∠ e

(b)

∠ A

and

∠ D

(c)

∠ i, ∠ e

and

∠ D

(d)

∠ r, ∠ A

and

∠ D

A student traces the path of a ray of white light through a rectangular glass slab and marks, the angles of incidence $(∠ i)$ refraction $(∠ r)$ and emergence $(∠ e)$ as shown. Which angle or angles has he not marked correctly?