Question

Explain the Working of an Astronomical Telescope Using Refraction of Light.

Answer 1

Explanation:

A parallel beam of rays from an astronomical object is made to fall on the objective lens of the telescope. It forms a real, inverted and diminished image A′B′ of the object. ... Therefore, a highly magnified image of the object is formed at infinity.

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Answer 2

Explanation:

An astronomical telescope works on the principle that when an object to be magnified is placed at a large distance from the objective lens of telescope, a virtual, inverted and magnified image of the object is formed at the least distance of distinct vision from the eye held close to the eye piece.