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1. The diagram shows a ray of light reflected from a plane mirror.

What is the angle of reflection?

2. The diagram shows a image of a clockface in a plane mirror reflected 1 time.

Which of these times is shown?

3. A boy writes the word LEFT on a piece of paper.

He lookes at the image of this paper, made by reflection of a plane mirror. What does he see?

4. A ray of light passes from a medium to air. If the angle of refraction is 30° and the refractive index of the medium is 1.4, find the angle of incidence.

5. To two decimal places, what is the refractive index of the Perspex?

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