O-LevelPhysicsWaves5054/11 · May/June 2022 · Q191 Mark

A wave in the sea collides with a cliff. A crest of the wave hits the cliff once every 6.0 s. The horizontal distance between a crest and the adjacent trough of the wave is 4.5 m. What is the speed of the wave?

A0.67 m/s

B0.75 m/s

C1.3 m/s

D1.5 m/s

✓ Correct answer

D: 1.5 m/s

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