Question

An astronomical telescope in normal adjustment receives light from a
distance source S, the tube length is now decreased slightly, then
(A) no image will be formed
(B) a virtual image of S will be formed at a finite distance
(C) a large, real image of S will be formed behind the eye piece, far
away from it.
(D) a small, real image of S will be formed behind the eye-piece
closes to it.​

Answer 1

Explanation:

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Answer 2

Answer:

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Explanation:

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(B) a virtual image of S will be formed at a finite distance