Question

In an astronomical telescope of refracting type ______.

Options

• Objective should have small focal length.

• Objective should have large focal length.

• Eyepiece should have large focal length.

• Both objective and eyepiece should have large focal length.

Answer 1

In an astronomical telescope of refracting type objective should have large focal length.

Explanation:

The objective is of large focal length. The eyepiece is of short focal length in the case of an astronomical telescope.