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A telescope has an objective of focal length 100 cm and an eye-piece of focal length 5 cm. What is the magnifying power of the telescope when it is in normal adjustment?A. 0.2B. 2C. 20D. 200 |
Answer» Correct Answer - C (c ) The magnifying power of the telescope in normal adjustment, `m=f_(o)/(f_(e))=100/5=20` |
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