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Manipal MET2020PhysicsRay Optics

The magnifying power of a telescope is m^ . If the focal length of the eye piece is doubled, then its magnifying power will become

Options

  1. A2 ~m
  2. B3 m
  3. C2 m
  4. Dm 2

Correct answer

D. m 2

Step-by-step solution

Magnifying power of a telescope is given by m= f_o f_e If the focal length of the eye piece is doubled, the new magnifying power is given by m^ = f_o f_e^ = f_o 2 f_e m^ = m 2

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