Question

the magnification of an object placed 10 cm from the convex mirror of radius of curvature 20 cm will be?​

Answer 1

Answer:-2/3

Explanation:

f=20/2

f=10 cm

1/f=1/v+1/u

1/20=1/v+1/-10

1/v=1/20+1/10

1/v=3/20

v=20/3 cm

Maginfication= -v/u

=(20/3)/-10

=-2/3