Mirror Equation Video Lessons

Concept

# Problem: What is the focal length of a makeup mirror that produces a magnification of 1.50 when a person’s face is 12.0 cm away? Explicit show how you follow the steps in the Problem-Solving Strategy for Mirrors.

###### FREE Expert Solution

Magnification:

$\overline{){\mathbf{m}}{\mathbf{=}}{\mathbf{-}}\frac{{\mathbf{s}}_{\mathbf{i}}}{{\mathbf{s}}_{\mathbf{o}}}}$

Mirror equation:

$\overline{)\frac{\mathbf{1}}{{\mathbf{s}}_{\mathbf{i}}}{\mathbf{+}}\frac{\mathbf{1}}{{\mathbf{s}}_{\mathbf{o}}}{\mathbf{=}}\frac{\mathbf{1}}{\mathbf{f}}}$

m = 1.5

so = 12.0 cm

###### Problem Details

What is the focal length of a makeup mirror that produces a magnification of 1.50 when a person’s face is 12.0 cm away? Explicit show how you follow the steps in the Problem-Solving Strategy for Mirrors.