The magnifying power of a telescope is 9. When it is adjusted for para – McqOptions

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1.	The magnifying power of a telescope is 9. When it is adjusted for parallel rays, the distance between the objective and the eye-piece is found to be 20 cm. The focal length of the two lenses are [MP PMT 1986]
A.	18 cm, 2 cm
B.	11 cm, 9 cm
C.	10 cm, 10 cm
D.	15 cm, 5 cm
Answer» B. 11 cm, 9 cm

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