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A simple telescope, consisting of an obj...

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 comes out from the eye lens. If the object subtends an angle `2^(@)` at the objective, the angular width of the image

A

`10^(@)`

B

`24^(@)`

C

`50^(@)`

D

`1//6^(@)`

Text Solution

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The correct Answer is:
B
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  • A simple telescope consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focused on a distant object is such a way that parellel rays come out from the eye lens. If the object subtends an angle 2^0 at the objective, the angular width of the image

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