Question

ii) What is spectrum ? Why do we get a spectrum of seven colours when
white light is dispersed by a prism?
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Answer 1

Answer:

When white light is incident on a prism, the rays corresponding to different colours bend through different angles on refraction . Of the various colours in the visible region, red light bends the least and violet light bends the most. ... Hence, we get a spectrum of seven colours.

Explanation:

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Answer 2

Answer:

SPECTRUM:-

a band of colours, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength.

Q)Why do we get a spectrum of seven colours whenwhite light is dispersed by a prism?

ans:- When white light is incident on a prism, the rays corresponding to different colours bend through different angles on refraction. Of the various colours in the visible region, red light bends the least and violet light bends the most. Hence, we get a spectrum of seven colours.

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