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+1 vote
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in Physics by (61.9k points)

(a) A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. Find the magnifying power of the telescope for viewing distant objects, when : 

(i) the telescope is in normal adjustment, 

(ii) the final image is formed at the least distance of distinct vision. 

(b) Also find the separation between the objective lens and the eyepiece.

1 Answer

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by (63.1k points)
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Best answer

(a) Given fo = 140 cm, fe = 5 cm

Magnifying power,

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