question_answer

Find the position of image of a concave mirror which produces three times magnified image when the object is placed at a distance of 10 from the concave mirror.

A) \[+\,\,30\,cm\]

B) \[-\,\,30\,cm\]

C) \[+\,\,25\,cm\]

D) \[-\,\,25\,cm\]

E) None of these