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To a fish under water, viewing obliquely, a fisherman standing on the bank of a lake looks

Options

  1. ATaller than what he actually is
  2. BSame height as he actually is
  3. CTaller or shorter depending on the refractive index of water
  4. DShorter than what he actually is

Correct answer

A. Taller than what he actually is

Step-by-step solution

When a fish looks at an object outside the water, the light rays travel from the rarer medium (air) to the denser medium (water). According to the laws of refraction, when light travels from a rarer medium to a denser medium, it bends towards the normal. Let the height of the fisherman be h . The light rays coming from the top of the fisherman's head and his feet enter the water and bend towards the normal at the water surface. Due to this refraction, the apparent position of the fisherman appears to be shifted upw

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