GCSE questions on refractionQ1. A student investigated the refraction of light in the laboratory. (a) Use a ruler to draw the continuation of path of the light ray shown on the diagram below. You must show how it passes into and out of the clear plastic block. (3 marks)
(b) The student measured the angle of refraction (r) for several different angles of incidence (i) for light entering the plastic block. The results are shown on a graph.
(2 marks)
(1 mark) (c) In some countries people are too poor to pay for electricity. Some people living in small houses with no natural light are using bottles filled with water instead of light bulbs. The bottles are fitted into small holes in the roof of the house. Sunlight refracts as it passes into and out of the bottle, causing light to spread into the room. This simple device gives about the same amount of light as a 50 W light bulb.
(1 mark)
(1 mark) (Total 8 marks) |
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