Q.

A biconvex lens forms a real image of an object placed perpendicular to its principal axis. Suppose the radii of curvature of the lens tend to infinity. Then the image would

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a

Disappear

b

Remain as real image still

c

Be virtual and of the same size as the object

d

Suffer from aberrations

answer is C.

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Detailed Solution

1f=μ−11R1−1R2For  biconvex  lens  R2=−R1∴1f=μ−12R
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