The speed of water waves decreases as the water becomes shallower. suppose waves travel across the surface of a lake with a speed of 2.0 m/s and a wavelength of 1.5 m. when these waves move into shallow part of the lake, their speed decreases to 1.6 m/s, though their frequency remains the same. find the wavelength of the waves in the shallower water.

Question

Porche

16 February, 11:53

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Fern · Answer 1

Speed=wavelength times frequency.

2=1.5f where f=frequency. So f=2/1.5. 1.6=2w/1.5 where w is the wavelength. So w=0.8*1.5=1.2m.