Q)
(chatquestion)...2.A plano-convex lens has a maximum thickness of
6 cm. When placed on a horizontal table with the
curved surface in contact with the table surface, then
the apparent depth of the bottom most point of the
lens is found to be 4 cm. If the lens is inverted such
that the plane face of the lens is in contact with the
surface of the table, then the apparent depth of the
centre of the plane face is found to be
17
cm. The
radius of curvature of the lens is
(a) 68 cm
(c) 128 cm
(b) 75 cm
(d) 34 cm
...
