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Dispersion of Light

A pencil dipp...

Question

A pencil dipped obliquely in water appears bent at the surface due to dispersion. True or false?

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Solution

False.

The pencil, obliquely dipped in water, will appear bent at the surface due to refraction and not dispersion.

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Similar questions

Q. State whether true or false:

A pencil held obliquely in water appears bent and longer.

Q. (a) With the help of a labelled diagram, explain why a tank full of water appears less deep than it actually is.
(b) Name the phenomenon due to which a pencil partly immersed in water and held obliquely appears to be bent at the water surface.

Q. A pencil, when dipped in water in a glass tumbler, appears to be bent at the interface of air and water. Will the pencil appear to be bent to the same extent, if instead of water we use liquids like,
kerosene or turpentine? (Yes/No)

Q. A pencil dipped partially in water appears bent because of :

Explain the following :

(a) A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.

(b) A straight stick partly dipped in water obliquely, appears to be bent at the surface of water.

(c) The sun is seen before the sunrise and after the sunset.

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