Q. 3 H4.1( 18 Votes )

Answer the following:

Write diagrams to show the refraction of parallel rays of light in (i) convex lens and (ii) concave lens.

Answer :

Convex Lens:


Convex lens is thicker at the middle and the rays of light that pass through it are brought closer together, therefore, they are converging lens. The figure below shows the refraction in the convex lens.



Concave Lens:


Concave lens are thinner at the middle and thicker at the edges the rays of light that pass through it spread out or diverged, therefore, they are the diverging lens. The figure below shows the refraction of parallel rays of the light by the concave lens.



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