Refraction

1 mark · Easy

State what is meant by refraction.

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Refraction is the change in direction of a wave as it passes from one medium to another due to a change in speed.

Also accept: Refraction is the bending of a wave when it enters a new medium at an angle.; Refraction is when the direction of a wave changes because it changes speed between different media.

Common mistakes: Confusing refraction with reflection.

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Marking points

B1 · 1 mark · Correct definition of refraction as change in direction of a wave due to change in speed when passing between media.

Worked solution

Refraction is the change in direction of a wave as it passes from one medium to another due to a change in speed.