Question

an object is placed at distance 30m infront of concave mirror of which of radius of curvature of 60cm find the position &linear magnification

Answer 1

R=2f

F=R/2

F=60/2 =30 cm

F=30/100m

F=0.3m

1/f=1/v + 1/u

1/-0.3 + 1/30 = 1/v (u=-30m)

V= -3.3m

M=-v/u

=3.3/-30

M=-0.11 m

Image will be real inverted