Question

The diagram given alongside shows a ray of light entering a rectangular block of glass.
(a) Copy the diagram and draw the normal at the point of entry.
(b) Draw the approximate path of the ray of light through the glass block and out of the other side.
Figure

Answer 1

Explanation:

(a) Normal at the point of entry:

NN’ is the normal ray at the point of entry and AB is the incident ray.

(b) The approximate path of a ray of light through the glass block and out of another side:

• BC is the ray of light passing through the glass bock which is called a refracted ray and CD is the ray of light out of another side which is called an emergent ray.

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