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JEE Main 2013 Physics question

PhysicsRay Optics and Optical InstrumentsJEE Main 2013

The focal length of the objective and the eyepiece of a telescope are 50 cm and 5 cm respectively. If the telescope is focussed for distinct vision on a scale distant 2 m from its objective, then its magnifying power will be :

Answer: (4)

Solution

Objective: u = −200 cm, f = 50 cm ⇒ v = 66.7 cm, . Eyepiece with the

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Question ID VK-104008