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In Huygen’s eyepiece...

In Huygen’s eyepiece

A

The cross wires are outside the eyepiece

B

Condition for achromatism is satisfied

C

Condition for minimum spherical aberration is not satisfied

D

The image formed by the objective is a virtual image

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The correct Answer is:
b
In Huygen’s eyepiece, the conditions for minimum spherical abberration and a chromatism is completely satisfied.
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