A point object O is placed at a distance of 0.3 m from a convex lens of focal length 0.2 m. It is then cut into two halves each of which is displaced by 0.0005 m as shown in figure.

image will be formed from the lens at a distance of

Options

A. 30 cm
B. 40 cm
C. 50 cm
D. 60 cm

Answer

D

Explanation

By using lens maker.s formula
`(1)/(v ) - (1)/(u) - (1)/(u) = (1)/(f)`
`(1)/(v) = (1)/(u) + (1)/(f )`
`(1)/(v) = (1)/(0.2) + (1)/(-0.3) implies v = 60` cm