NCERT Class VIII Science Solutions: Chapter 16-Light Part 4

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Question 14:

What happens to light when it gets dispersed? Give an example.


Light is split into its constituent colours. Rainbow is an example

Question 15:

Draw Fig showing the position of the plane mirror. Also label the angle of incidence and angle of reflection on it.

As showing in fig is a angle of incidence (Q)

Angle of Incidence (Q)


As showing in fig is a angle of incidence (A)

Angle of Incidence (A)

Question 16:

Look at Fig. Can the image of the child in it be obtained on a screen?

As showing in fig is a the child in it be obtained on a scre …

The Child in It be Obtained on a Screen


No, the image of the child cannot be obtained on a screen

Question 17:

Eyes of the nocturnal birds have large cornea and a large pupil. How does this structure help them?


A large pupil and large cornea allows more light to enter their eyes and they can see objects even in faint light.

Question 18:

What kind of lens is there in our eyes? Where does it form the image of an object?


The type of lens in our eyes is convex. It forms images on the retina.

Question 19:

Which part of the eye gets affected if someone is suffering from cataract? How is it treated?


In people suffering from cataract the eye lens becomes clouded. Cataract is treated by replacing the opaque lens with a new artificial lens

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