Subject :NSO Class : Class 10
An object is placed at a distance of 45 cm from a
converging lens of focal length 30 cm. A convex mirror
of radius of curvature 40 cm is to be placed on the
other side of lens so that the object coincides with its
image. Find the position of the mirror from the lens.
A 50 cm
B 60 cm
C 90 cm
D 30 cm
How