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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

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`MP = (f_(0)/(f_(e)) = (beta)/alpha) implies beta = alpha(f_(0))/(f_(e)) = 2^(@) xx (60)/(5) = 24^(@)`
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