Question

Radius of curvature of each surface of an equiconvex lens
(u = 1.5) is 30 cm. One of the surfaces is silvered from
outside to make it reflecting. An object is placed in front of
the silvered lens at such a position that the image formed
coincides with the object. Distance of the object from the
lens is :
(a) 20 cm
(b) 18 cm
(c) 15 cm
(d) 12 cm​

Answer 1

Answer:

distances of object from lens is 15 cm