Question

Fill in the blanks with suitable words :
(a) When a ray of light enters a prism, it bends………….the normal , as it leaves the prism, it bends…………the normal.
(b) White light is composed of…………..colours. The colour of white light deviated through the largest angle by a prism is............

Answer 1

(a)When a ray of light enters a prism, it bends towards the normal , as it leaves the prism, it bends away from the normal.

(b)White light is composed of 7 colours. The colour of white light deviated through the largest angle by a prism is violet color

Explanation:

• Whenever a ray undergoes refraction, it bends towards the normal if passes from rarer to denser medium and bends away from the normal when passes from denser to rarer medium
• Prism have denser medium than the surrounding so bends towards the normal when enters into the prism, when leaves the prism again surrounding have rarer medium as compare to prism so bends away from the normal
• White light consist of seven colors as we all the colors when light passes through the prism

• Deviation in the light is more while passing through the prism if have lesser wavelength and vice- versa so violet color will deviate more as have smaller wavelength

To know more about dispersion, visit:

Which colour deviate minimum during the dispersion of light through a prism?

https://brainly.in/question/7209720

Explain dispersion of white light through a prism

https://brainly.in/question/1087224

Answer 2

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