Question

The magnifying power of a telescope is high if its objective and eyepiece have respectively ______.

विकल्प

• small and large focal length

• large focal lengths

• large and small focal length

• small focal lengths

Answer 1

The magnifying power of a telescope is high if its objective and eyepiece have respectively large and small focal length.

Explanation:

Magnifying power of a telescope `="f"_0/"f"_e`