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A simple telescope , consisting of an ob...

A simple telescope , consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object in such a way that parallel rays come out from the eye lens. If the object subtends an angle `2^@` at the objective , what is the angular width of the image ?

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The correct Answer is:
`24^@`
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