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Question

The swimming pool appears to be less deep than it actually is. Which phenomenon is responsible for it?


  1. Refraction of light 

  2. Scattering of light

  3. Reflection of light

  4. Diffusion of light


Solution

The correct option is A

Refraction of light 


When we look into a pool of water, we do not see the actual depth of the pool. We see a virtual image of the bottom of the pool. This is because, light rays from the bottom of the pool are bent away from the normal as they pass from water into the air (beacuse air is the rarer medium and water is the denser medium). This phenomenon is called the refraction of light. Due to this, the image of the bottom of the pool seems nearer to us and the pool appears less deep as shown in the figure.

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