Question

An object is placed 4 cm in front of a convex lens produce a virtual are errect image 12cm front the lens on the same side of the object.(a)What is the magnification of image ?(b)What is the focal length of object​

Answer 1

Answer:

m is -3 and f is 6

Explanation:

m is -v/u

m is -12/4

m is -3