Snell's Law Practice

If light is traveling from air to water with an angle of INCIDENCE of 40 degrees, what is the angle of refraction? (n=1 air, n=1.33 water)

...How do you solve: (1)(sin40) = (1.33)(sinƟ)

• 48 degrees

• 2.07 degrees

• 11.9 degrees

• 28.9 degrees

Light has the highest velocity in which medium?

flint glass n=1.70

barium glass n=1.60

crown glass n=1.523

water n=1.33

diamond n=2.45

• diamond

• water

• flint glass

• barium glass

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Light has the lowest velocity in which medium?

flint glass n=1.70

barium glass n=1.60

crown glass n=1.523

water n=1.33

diamond n=2.45

• diamond

• water

• flint glass

• barium glass

Glass has a _____________ index of refraction (or "n") than air.

• Equal

• Greater

• Less

• Impossible to say

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According to the Law of reflection, a light ray striking a mirror

• continues moving through the mirror in the same direction
• moves into the mirror at a slightly different angle
• bounces off the mirror toward the direction it came from
• bounces off the mirror at the same angle it hits.

Light travels through a liquid at 2.25 EE 8 m/s. What is the index of the liquid?

• 1.33
• 1.0
• 1.523
• 2.45

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The velocity of light in vacuum is _______ m/s.

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

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The _________ of light can change when light is refracted because the medium changes.

• frequency
• medium
• wavelength
• transparency

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When light passes at an angle to the normal from one material into another material in which its speed is higher 

• it is bent toward the normal.
• it always lies along the normal.
• it is unaffected.
• it is bent away from the normal.

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The diagram shows a ray of light, R, entering glass from air. Which path is the ray most likely to follow in the glass?

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