Refraction W3

Will light change direction toward or away from the perpendicular when it goes from air to water?

• away from the perpendicular

• toward the perpendicular

Will light change direction toward or away from the perpendicular when it goes from glass to water?

• away from the perpendicular

• toward the perpendicular

Will light change direction toward or away from the perpendicular when it goes from Benzene to water?

• away from the perpendicular

• toward the perpendicular

What is the speed of light in Ethanol?

• 220426157 m/s

• 199866755 m/s

• 184275184 m/s

• 124018189 m/s

What is the speed of light in Diamond?

• 220426157 m/s

• 199866755 m/s

• 184275184 m/s

• 124018189 m/s

What is the speed of light in Carbon disulfide

• 220426157 m/s

• 199866755 m/s

• 184275184 m/s

• 124018189 m/s

Calculate the index of refraction for a medium in which the speed of light is

2 × 10^8 m/s

• 1.75

• 2

• 1.5

• 1

The speed of light is

2 × 10^8 m/s. Identify the most likely substance:

• Glass

• Air

• Benzene

• Water

Components of some computers communicate with each other through optical fibers having an index of refraction n = 1.5. What time in nanoseconds is required for a signal to travel 0.200 m through such a fiber?

• 1.03 ns

• 1 ns

• 0.5 ns

• 0.9 ns

Suppose you have an unknown clear substance immersed in water, and you wish to identify it by finding its index of refraction. You arrange to have a beam of light enter it at an angle of 45.0°, and you observe the angle of refraction to be 40.3°.

• 1.46

• 1.55

• 1.34

• 1.33