reflection

Question 1

what is the law of reflection

Answer 1

i=r

Question 2

what is reflection from a smooth surface called

Answer 2

specular reflection

Question 3

what is reflection from a rough surface called

Answer 3

diffuse scattering

Question 4

what is the imaginary line at 90° to the mirror called

Answer 4

the normal

Question 5

what is the angle between the incident ray and the normal called

Answer 5

the angle of incidence

Question 6

what is the angle between the reflected ray and the normal called

Answer 6

the angle of reflection

Question 7

if two rays that are parallel are reflected at different angles will you see an image

Answer 7

no, you will not

Question 8

Why do you see an image in the mirror

Answer 8

because the image is a virtual image, your brain uses the fact that light travels in straight lines to work out where the light appears to come from, this is where you see the image

Question 9

why dont you see an image of yourself on a white wall

Answer 9

because its a rough surface so the incident rays get scattered, turning the image into just plain white