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Question

How can the resolving power of a telescope be increased?

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Solution

Resolving power of telescope is defined as the reciprocal of the smallest angular separation between two distant objects whose images are seen separately.
Resolving power of telescope RP=a1.22λ
where a is the diameter of objective lens of telescope.
RP a
Thus resolving power of telescope can be increased by increasing the diameter of objective lens of telescope.

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