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A point object O approaches a biconvex l...

A point object O approaches a biconvex lens of focal length 40 cm along its optic axis with a speed of 10 m/s while the later receeds away from the former with a speed of 4 cm/s. Find the speed and direction of motion of the image when the object is at a distance of 60 cm from the lens.

A

10 cm/s, leftwards

B

10 cm/s, rightwards

C

28 cm/s , righwards

D

28 cm/s leftwards

Text Solution

Verified by Experts

The correct Answer is:
C
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