Question

What will be the height of the image when an object of 2 mm is placed at a distance 20 cm infront of the axis of a convex mirror of radius of curvature 40 cm ?

• A. 20 mm
• B. 10 mm
• C. 6 mm
• D. 1 mm

Answer 1

Answer: (D)

1 mm

Answer 2

f = R/2

\ f = + 20 cm, u = – 20 cm, h₀ = 2 mm

m = $\frac { 20 } { 20 - ( - 20 ) }$

h_i = 1 mm