Chap. 5: Light

Question 1

What are characteristics of a plane mirror?

Answer 1

1. Image formed is the same size as object
2. Image is upright
3. Image is laterally inverted
4. Distance between image and mirror is equal to distance from object to mirror
5. Image is virtual

Question 2

What is refraction and what do the different optical densities change the direction of light?

Answer 2

It is the bending of light as it passes through mediums of different optical densities due to change of speed

Optically less dense to denser-> Slows down , bends towards normal

Optically denser to less dense-> Speeds up, bends away from normal