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What is the separation between the objective lens and the eyepiece of a small telescope in normal adjustment if the objective lens has a focal length of 140 cm and the eyepiece has a focal length of 5.0 cm?

Options

  1. A145 cm
  2. B135 cm
  3. C145.5 cm
  4. D140 cm

Correct answer

A. 145 cm

Step-by-step solution

Correct Option is : (A) 145 cm

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