An object (5 ~cm ) tall is placed (1 ~m ) from a concave spherical mirror which has a radius of curvature of (20 ~cm ). The size of the image is

Step-by-step solution

: h₀=5 ~cm , h_i=?u=-100 ~cm , R=-20 ~cm . f=-10 ~cm Using mirror formula, aligned & 1 v + 1 u = 1 f 1 v - 1 100 =- 1 10 & 1 v = 1 100 - 1 10 = 1-10 100 =- 9 100 & v=- 100 9 ~cm . & h_i h₀ = v u h_i 5 ~cm = (100 / 9) 100 = 1 9 & h_i=5 / 9=0.55 ~cm . aligned