Consider the following statements about a refracting astronomical telescope used in normal adjustment (final image at infinity). Which of the statements are correct?

I. The distance between the objective and the eyepiece equals f_o + f_e.
II. Its magnifying power is f_o/f_e, so the objective should have a much larger focal length than the eyepiece.
III. Increasing the diameter of the objective (keeping its focal length unchanged) increases the magnifying power.
IV. The final image seen through the telescope is erect.

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Consider the following statements about a refracting astronomical telescope used in normal adjustment (final image at infinity). Which of the statements are correct?

More NEET Physics chapters

Practising is step one. Knowing what to practise next is the hard part.

Practising is step one. Knowing what to practise next is the hard part