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An astronomical telescope of tenfold ang...

An astronomical telescope of tenfold angular magnification has a length of 44 cm. The focal length of the objective is

A

4 cm

B

40 cm

C

44 cm

D

440 cm

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-OPTICAL INSTRUMENTS -PRACTICE SHEET (EXERCISE -I) (OPTICAL INSTRUMENTS) (LEVEL-I (MAIN)) (SUBJECTIVE OBJECTIVE TYPE QUESTIONS)
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