Light + Optics

Question 1

Electromagnetic waves are transverse waves that display an

Answer 1

Electric field perpendicular to magnetic field

Question 2

What is the equation of light?

Answer 2

c = f • wavelength

Question 3

What does the Law of Reflection state?

Answer 3

Angle of incidence = Angle of reflection

Question 4

Refraction is the

Answer 4

Bending of light due to changing speed when passing from 1 medium to another

Question 5

What is the equation for index of refraction?

Answer 5

n = c / v

Question 6

What is the equation for Snell’s Law?

Answer 6

nsin0 = nsin0

Question 7

What happens when n2 > n1?

Answer 7

Light slows and bends towards the normal, making 02 < 01

Question 8

What happens when n1 > n2?

Answer 8

Light speeds up and bends away from the normal, making 02 > 01

Question 9

How is the relationship between angles when n1 > n2?

Answer 9

Refracted angle > Angle of incidence

Question 10

sin(angle of incidence) =

Answer 10

n2 / n1

Question 11

Internal reflection is caused when

Answer 11

02 = 90, reflecting light from the second medium back into the first