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An astronomical telescope has a large ap...

An astronomical telescope has a large aperture to ….. .

A

reduce spherical aberration

B

have high resolution

C

increase span of observation

D

have low dispersion

Text Solution

Verified by Experts

The correct Answer is:
A, B
Resolution power of telescope = `(D)/(1.22lambda)` and 1.22 is constant.
`therefore` Resolution power `prop` D.
`therefore` Resolution power increases.
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