Question

What kind of lenses anuj
need to make the telescope​

Answer 1

Answer:

The basic refracting telescope has two lenses. The first lens is called the objective lens. This lens is a convex lens that bends the incoming light rays to a focal point within the telescope. The second lens is called the eyepiece.

Answer 2

Answer:

Two lenses are needed to build a telescope.

We call these the "objective" lens and the "eyepiece" lens.

The "Objective" lens should always be a convex lens. Convex lenses are thicker in the middle, and can be used as magnifying glasses or for concentrating sunlight