An object is placed at a distance of 40 cm from a convex lens of focal length 20cm. On the far side of the lens, a concave mirror of focal length 10cm is placed such that the distance of the object from the concave mirror is 100 cm. Then the final image which is formed after refraction from the lens, reflection from the mirror and again refraction from the lens, will be

Options

A. at a distance of 40cm from the lens and of the same size of the object
B. at a distance of 20cm from the lens and of the same size of the object
C. at a distance of 20cm from the lens
D. at a distance of 40 cm from the lens and of half the size of the object

Answer

A