Fact 1: An image in a mirror is formed by reflecting light.

Fact 2: Reflectance is the ratio of light out to light in.

Given the two facts above, answer the question "An image is formed where by the ratio of light out to light in?" with the following options: 
- fronts
 - Smooth
 - segmented
 - Joules
 - two
 - mirror
 - an object
 - photons


 

      mirror   