CCEA GCSE Physics, Third Edition by Roy White & Frank McCauley

Author:Roy White & Frank McCauley [White, Roy; McCauley, Frank]
Language: eng
Format: epub
Publisher: Hodder Education
Published: 2017-09-14T04:00:00+00:00

Waves travel more slowly in shallow water than they do in deep water. This change of speed is called refraction. Since the same number of waves leave the deep water as enter the shallow water every second, the frequencies in the deep and shallow regions must be the same. This means that the waves in shallow water must have a shorter wavelength than those in deep water.

When water waves enter the shallow region obliquely (at an angle), they not only slow down, but also change direction, as shown in Figure 8.11.

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