v versus u graph for convex and concave mirror - Physics - Ray Optics And Optical Instruments

Question

v versus u graph for convex and concave mirror

Vijay Yadav · Answer

Hello, For convex mirror

Let f = 10 cm = 0.1m

Use mirror formula 1/v + 1/u =1/f

Plug in f = 0.1m

we get v +u = 10uv

$\frac{1}{u} + \frac{1}{v} = \frac{1}{f} = > \frac{1}{u} + \frac{1}{v} = \frac{1}{0.1} = > u + v = 10 u v$

For concave mirror

Let f = -10 cm = -0.1m

Use mirror formula we get

v+ u = -10uv