Question

7. A point object is placed on the principal axis of a
spherical mirror. The object distance is
(a) definitely negative
(b) definitely positive
(c) positive if the object is to the left of the centre of
curvature
(d) positive if the object is to the right of the centre
of curvature​

Answer 1

Answer:

definitely negative as spherical mirrors have only one reflecting surface

Answer 2

Answer:d.

Explanation:

According to sign convention distance to right of mirror are positive