Snell's Law

Snell's Law describes the relationship between the ________ angle and the _______ angle of waves passing through two different media

• incident - reflected

• incident - refracted

• incident - bounced

• answer is not here

Tags

NGSS.HS-PS4-1

If light travels from a higher to a lower index of refraction medium the light will

• bend away from the vertical axis or may not refract

• bend closer to the vertical axis

• not bend

• answer is not here

Tags

NGSS.HS-PS4-1

If light travels from a lower to a higher index of refraction medium the light will

• bend away from the vertical axis

• bend closer to the vertical axis

• not bend

• answer is not here

Tags

NGSS.HS-PS4-1

A higher index of refraction means that the wave travels _____________ the speed of light in a vacuum in that medium.

• Faster than

• Slower than

• Equal to

• Answer is not here

Tags

NGSS.HS-PS4-1

Light travels from air (n = 1.000) into an optical fiber. If the angles of incidence and refraction are 22^oand 15º respectively. what is the index of refraction inside the fiber? Round off your values to 3 sig. figs.

• 1.45

• 1.44

• 0.69

• 0.70

Tags

NGSS.HS-PS4-1

The index of refraction, is defined as the ratio of the speed of light in a vacuum (c = 3x10^8 m/s) to the speed of light in a medium. What is the index of refraction of a medium where the speed of light is 0.7c ? Round off your values to 3 sig. figs.

• 1.42

• 1.43

• 1.28

• 1.29

Tags

NGSS.HS-PS4-1

Find the speed of the refracted wave using the wave equation: v = (f)(L)

*Where v = speed of the wave, f = frequency and L = Wavelength.

And the following data set:

L1= 650nm

V1 = 0.71c

V2 = 0.41c

*Remember that:

For medium 1, we have V1= (f)(L1)

For medium 2 we have V2=(f)(L2).

• 528 nm

• 800 nm

• 375 nm

• 1126 nm

Tags

NGSS.HS-PS4-1

For light passing across the boundary from higher to lower index of refraction medium, the angle of refraction is always _________________________

• greater than the angle of incidence

• less than the angle of incidence

• equal to the angle of incidence

Light travels from water (n = 1.333) into an unknown medium. If the angles of incidence and refraction are 45^oand 24º respectively. what is the index of refraction of the unknwon medium? Round off your values to 3 sig. figs.

• 2.32

• 2.31

• 0.77

• 0.76

There are certain angles of incidence for which the angle of refraction is close to 90°. What is this angle called?

• Total internal angle

• Critical angle

• Reflection angle

• Refracted angle