science
Grade-7
Easy

Question

A coin lies at the bottom of the tumbler with water. However, its position appears to be raised because ___.

  1. The light coming from the coin kept in water bends on entering air. 
  2. The light coming from the coin enters straight away into the eyes
  3. The light coming from the coin kept in water does not bend on entering air 
  4. None of the above

hintHint:

Refraction of light

The correct answer is: The light coming from the coin kept in water bends on entering air.


    • Due to refraction of light, the ray of light from the coin travels from a denser medium to a rarer medium.
    • In this process it bends away from the normal .
    • The point from which the refracted rays appear to come gives the apparent position of the coin.
    • So, the correct option is a.

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