Refraction of light

Look at the diagram, What is the angle of refraction for this ray of light moving from glass to air?

• A

• B

• C

• D

Look at the diagram, What is the angle of incidence for this ray of light moving from glass to air?

• A

• B

• C

• D

Look at the diagram, What is the angle of emergence for this ray of light moving from glass to air?

• A

• B

• C

• D

If the angle of incidence, A is 30 degree, what is the angle of emergence, D

• 45

• 30

• 60

• 90

If the angle of incidence, A is 30 degree, what is the angle of X

• 45

• 30

• 60

• 90

The diagram shows the path of a ray of light travelling towards and into a pool of water.

Four angles are labeled. Which two angles would be correctly used in the equation  OF sin i/sin r?

• P and R

• P and S

• Q and R

• Q and S

Which block is made from the material with a refractive index of 1.52? (Hint : use your calculator to calculate)

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Which block is made from the material with a refractive index of 1.46 ? (Hint : use your calculator to calculate)

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Which block is made from the material with a refractive index of 1.88 ? (Hint : use your calculator to calculate)

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A ray of light passes into a parallel-sided glass block of refractive index 1.5. What is the angle X?

• 19.5°

• 25°

• 35°

• 48.5°