A convex lens made of glass (µ = 1.5) has both radii of curvature 20 cm each. A point object is placed on the principal axis at a distance of 40 cm from the lens. The distance of the image from the lens is:

10 cm 20 cm 40 cm $\frac{40}{3}$ cm

40 cm

The correct answer is Option (3) → 40 cm