A student conducts an activity using a flask of height 15 cm and a concave mirror. He finds that the image formed is 45 cm in height. What is the magnification of the image?

Q. A student conducts an activity using a flask of height 15 cm and a concave mirror. He finds that the image formed is 45 cm in height. What is the magnification of the image?

A.            -3 times

B.            -1/ 3 times

C.            1/ 3 times

D.            3 times

Answer: 3 times