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What is the magnifying power of a small telescope with an objective lens of focal length 140cm and an eyepiece of focal length 5.0cm when it is in normal adjustment, i.e., when the final image is at infinity?

Options

  1. A28
  2. B35
  3. C25
  4. D42

Correct answer

A. 28

Step-by-step solution

Correct Option is : (A) 28

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