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The length of an astronomical telescope is 16cm and its magnifying power is 3. The focal length of the lenses will be- (A) 4cm,12cm (B) 4cm,8cm (C) 4cm,2cm (D) 8cm,4cm

The length of an astronomical telescope is 16cm and its magnifying power is
3. The focal length of the lenses will be-
(A) 4cm,12cm (B) 4cm,8cm (C) 4cm,2cm (D) 8cm,4cm

Grade:12

1 Answers

Shivansh
askIITians Faculty 267 Points
3 years ago
Fo+Fe=16
Fo/Fe=3

option A is the solution

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