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19/09/2020 3:42 pm
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A compound microscope consists of an objective lens of focal length 1 cm and an eyepiece 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…………
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19/09/2020 3:49 pm
L = 10
ve = ∞
ue = fe = 5
v0 = 10 - 5 = 5
1/v0 - 1/u0 = 1/f0
1/5 - 1/u0 = 1/1
u0 = - 5/4 cm
5/4 = n/40
n = 50