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Angular Magnification in Telescope

A telescope h...

Question

A telescope has objective and eye-piece of focal lengths 200 cm and 2 cm respectively. The magnifying power of the telescope for normal vision is

A

90

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B

100

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C

108

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D

198

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Solution

The correct option is B 100
For normal vision (relaxed eye), the image is formed at infinity. Hence the magnifying power of
telescope $= \frac{f_{0}}{f_{e}} = \frac{200}{2} = 100.$

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Angular Magnification in Telescope

Standard XII Physics

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