Question

Explain the working of an astronomical
telescope using refraction of light with suitable diagram.
[5 Marks question]
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Answer 1

Answer:

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. The same has been shown in the figure below.