In which of the following situations is the light’s angle of incidence greater than the angle of refraction? Select all that apply.

• A

• B

• C

• D

In which of the following situations is the light’s angle of incidence less than the angle of refraction? Select all that apply.

• A

• B

• C

• D

Based on your answers to questions 1-2, which are the correct paths of light? Select all that apply.

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Which conclusions are correct? Select all that apply.

• When light moves from a less dense substance to a more dense material, it moves away from the normal.

• When light moves from a less dense substance to a more dense material, it moves towards the normal.

• When light moves from a more dense substance to a less dense material, it moves away from the normal.

• When light moves from a more dense substance to a less dense material, it moves towards the normal.

Which of the following statements are correct for unknown 2? Select all that apply.

• Unknown 2 has greater n than air.

• Unknown 2 has greater n than water.

• Unknown 2 has lesser n than oil.

• Unknown 2 has lesser n than diamond.

A ray of light moves from air to water and hits the boundary at various incident angles as shown. In which situation will the angle of refraction be the least?

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A ray of light moves from air to water and hits the boundary at various incident angles as shown. In which situation will the reflected ray be the brightest?

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Based on your answers to questions 6-7, which conclusions are correct when light moves from a less dense material to a more dense material? Select all that apply.

• As the angle of incidence increases, the angle of refraction decreases.

• As the angle of incidence increases, the angle of refraction increases.

• As the angle of incidence increases, the brightness of the reflected ray decreases.

• As the angle of incidence increases, the brightness of the reflected ray increases.

A ray of light moves from water to air and hits the boundary at various incident angles as shown. In which situation will the angle of refraction be the least?

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A ray of light moves from water to air and hits the boundary at various incident angles as shown. In which situation will the refracted ray be the brightest?

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