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Figure shows a object placed in front of...

Figure shows a object placed in front of a lens of focal length `10` cm, at a distance `20` cm from the lens. On the other side, a convex mirror `(f=5cm)` (with same principle axis as that of lens) is placed such that all light rays after refracting through lens strike the mirror simultaneously. The distance between the mirror and the lens is:

A

After reflection from the mirror the image of `AB` will be parallel to principal axis of the lens

B

After reflection from the mirror the image of `AB` will be perpendicular to principal axis of the lens.

C

The value of `H` for which the sharp image of `AB` can be obtained at the bottom of the container is `80cm`

D

The value of `H` for which the sharp image of `AB` can be obtained at the bottom of the container is `85cm`

Text Solution

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The correct Answer is:
A, D
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