For unit magnification, the distance of an object
from a concave mirror of focal length 10 cm will
be :
(A) –20 cm (B) 20 cm
(C) –10 cm (D) 10 cm
For unit magnification, the distance of an object
from a concave mirror of focal length 10 cm will
be :
(A) –20 cm (B) 20 cm
(C) –10 cm (D) 10 cm
