science
Grade-7
Easy

Question

A coin is lying at the bottom of a tumbler filled with water. How many mediums does the light from the coin go through to reach the eyes of the observer?

  1. 4
  2. 3
  3. 2
  4. 1

hintHint:

Denser and rarer medium

The correct answer is: 2


    • The light rays coming from the coin goes through refraction as it moves from a denser medium (water) to rarer medium(air).
    • Light rays travel 2 medium.
    • And then we see the apparent position of coin. 
    • So, the correct option is c.

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