A rainbow is formed when tiny drops of water suspended in the air act as:

Mirror

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Opaque object

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Prism

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Rectangular glass slab

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Solution

The correct option is C Prism
Since the prism also splits the white light into its constituent colors. Similarly, water droplets suspended in the air also acts as a prism for the light falling on their surfaces. Hence, we see a rainbow in the sky after the rainfall.

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Question 7

Clouds are

(a) tiny drops of water floating in air
(b) mixture of dust and water vapour
(c) particles of water vapour
(d) rain drops in air

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