Question

the linear magnification produced by a spherical mirror is +3.analyse this value and state the 1) type of mirror and 2)position of the object with respect to the pole of the mirror. Draw ray diagram to show the formation of image in this case.

Answer 1

m = 3
1. convex mirror
3. m = -v÷u
3u = -v
-3u = v or -3÷v = 1÷u
-v÷3 = u