Refractive Index

Question 1

what’s the equation for refractive index

Answer 1

refractive index = sine angle of incidence / sine angle of refraction

Question 2

what are the elements of the refractive index equation

Answer 2

1) Refractive index
2) speed of light in a medium
3) speed of light in a vacuum

Question 3

every what has a refractive index

Answer 3

transparent substance

Question 4

what is a refractive index

Answer 4

the amount in which a transparent object slows the light down compared to the speed of light in a vacuum

Question 5

what is sin i

Answer 5

sin i is the angle of incidence

Question 6

what is sin r

Answer 6

sin r is the angle of refraction

Question 7

When light travels from a more optically dense medium into a less optically dense medium what is the refractive index then

Answer 7

1/sin (critical angle)

Question 8

Where will a light ray travel if the angle of incidence is equal to the critical angle?

Answer 8

along the boundary of the two mediums

Question 9

The angle of refraction is lower than the angle of incidence. What does this indicate about the material?

Answer 9

1) it has a tiger refractive index

2) the light is travelling more slowly in the medium