A point object O is placed on the princi...

A point object `O` is placed on the principal axis of a convex lens of focal length `f=20cm` at a distance of 40 cm to the left of it. The diameter of the lens is 10. An eye is placed 60 cm to right of the lens and a distance `h` below the principal axis. The maximum value of `h` to see the image is

5 cm

2.5 cm

10 cm

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