A-LevelPhysicsWaves9702/12 · Oct/Nov 2021 · Q231 Mark
The table contains descriptions and examples of waves. Which row is correct? [Figure 23.1]
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Adescription of wave: oscillations are parallel to the direction of energy transfer, example: gamma-rays
Bdescription of wave: oscillations are parallel to the direction of energy transfer, example: ultraviolet waves
Cdescription of wave: oscillations are perpendicular to the direction of energy transfer, example: sound waves
Ddescription of wave: oscillations are perpendicular to the direction of energy transfer, example: X-rays
✓ Correct answer
D: description of wave: oscillations are perpendicular to the direction of energy transfer, example: X-rays
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