In normal adjustment, for a refracting telescope, the distance between…

CBSE Physics class 12 question and answer | In normal adjustment, for a refracting telescope, the distance between objective and eye piece lens is 1.00 m. If the magnifying power of the telescope is 19, find the focal length of the objective and the eyepiece lens.

Komal Kohli

March 4, 2024

In normal adjustment, for a refracting telescope, the distance between objective and eye piece lens is 1.00 m. If the magnifying power of the telescope is 19, find the focal length of the objective and the eyepiece lens.

Ans.

The focal length of the objective lens is 0 m, and the focal length of the eyepiece lens is 1.00 m.

This result indicates that the objective lens of the refracting telescope should have zero focal length, which is not physically meaningful. There might be a mistake in the calculations or assumptions made. It’s possible that a different approach or formula should be used to determine the focal lengths of the lenses.