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Write Two Important Advantages Of Reflecting Telescope Over a Refracting Telescope. - ISC (Arts) Class 12 - Physics (Theory)

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Write two important advantages of reflecting telescope over a refracting telescope.

Explain two advantages of a reflecting telescope over a refracting telescope

State any one advantage ·of using a reflecting telescope in place of a refracting telescope.

Solution 1

The two advantages of a reflecting telescope over a refracting telescope are as follows:

(i) There is no chromatic aberration in case of reflecting telescopes as the objective is a mirror.

(ii) Spherical aberration is reduced in case of reflecting telescopes by using mirror objective in the form of a paraboloid.

Solution 2

Two advantages of a reflecting telescope over a refracting telescope are:

1) Chromatic aberration is absent in reflecting type telescope whereas it is present in refracting type telescope. The absence of chromatic aberration in reflecting type telescope is because the objective is a mirror.

2) Images are brighter compared to that in a refracting type telescope.

Solution 3

Reflecting telescope remove chrometic and spherical aberration.

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Solution Write Two Important Advantages Of Reflecting Telescope Over a Refracting Telescope. Concept: Optical Instruments - Telescope.
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