A pencil partly immersed in a glass tumbler filled with water appears to be displaced at the interface of air and water because:

Glass tumbler creates an illusion and pencil appears displaced

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Light does not travel in the same direction in all media

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Pencil and water react and the light direction changes

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None of these

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Solution

The correct option is B
Light does not travel in the same direction in all media

Light rays while entering a media change their direction depending upon the density of the medium. As water is a denser medium with respect to air, light rays bend towards the normal. When this bent light reaches the eye, the pencil appears to be displaced or distorted.

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Q. A pencil partly immersed in water in a glass tumbler appears to be bent at the interface of air and water. Name the phenomenon of light responsible for it.

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Question 22
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. Support your answer with reason.

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