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Kevin Nash , 11 Years ago
Grade upto college level
anser 1 Answers
Aditi Chauhan

Last Activity: 11 Years ago

(b)

Given: Length of astronomical telescope (f0 + fe) = 44 cm and magnification

 (f_0/f_e )=10.

From the given magnification, we find that f0 = 10 fe.

Therefore, 10 fe + fe = 44 or 11 fe = 44 or fe = 4.

And focal length of the objective (f0) = 44 - fe = 44 - 4 = 40 cm.

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