An opera glass (Gallilean telescope) measures 9 cm from the objective – McqOptions

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1.	An opera glass (Gallilean telescope) measures 9 cm from the objective to the eyepiece. The focal length of the objective is 15 cm. Its magnifying power is [DPMT 1988]
A.	2.5
B.	2/5
C.	5/3
D.	0.4
Answer» B. 2/5

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