optics review

Question 1

define refraction

Answer 1

the bending of light at angle from one medium with one refractive index to another

Question 2

what is the critical angle

Answer 2

when the refracted ray reaches 90 degrees

Question 3

what is total internal reflection

Answer 3

when the angle of incidence is larger the critical angle the light is reflected into the first medium

Question 4

what is the speed of light in a vacuum

Answer 4

3.000 x 10 to power of 8 m/s

Question 5

n equals what

Answer 5

index of refraction

Question 6

what equals c

Answer 6

speed of light in vacuum

Question 7

what is a converging lens

Answer 7

two convex surfaces that cause parallel rays converge

Question 8

what is a diverging lens

Answer 8

two concave surfaces that cause parallel ray to diverge

Question 9

formula for image distance

Answer 9

1/f=1/di+1/do

Question 10

formula for image height

Answer 10

hi/ho=-di/do

Question 11

index refraction formula

Answer 11

n= c/v

Question 12

what causes hyperopia and how is it corrected

Answer 12

when the image forms behind the retina corrected by converging lenses

Question 13

what causes myopia and how is it corrected

Answer 13

when the image forms in front of the retina corrected by diverging lenses