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JEE Main20205 Sep 2020Morning ShiftPhysicsRay OpticsActual

A compound microscope consists of an objective lens of focal length 1 cm and an eye piece of focal length 5 cm with a separation of 10 cm . The distance between an object and the objective lens, at which the strain on the eye is minimum is n 40 cm . The value of n is.......

Correct answer

0

Step-by-step solution

L = 10 V e = ∞ ue = fe = 5 V 0 = 10 - 5 = 5 1 v 0 - 1 u 0 = 1 f 0 1 5 - 1 u 0 = 1 1 u 0 = - 5 4 c m 5 4 = n 40 n = 50

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