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MHT CET202014 Oct 2020Evening ShiftPhysicsRay OpticsActual

The magnifying power of an refracting type of astronomical telescope is 'm'. If focal length of the eyepiece is doubled, the magnifying power will become

Options

  1. Am 4
  2. Bn 2
  3. C2 ~m
  4. Dm

Correct answer

B. n 2

Step-by-step solution

The magnifying power m = f ₀ f _ e If f _ e is doubled, the magnifying power becomes half.

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