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# A wave generator set at 45 Hz produces a 30 mm wavelength that propagates across a...

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A wave generator set at 45 Hz produces a 30 mm wavelength that propagates across a shallow tank of water 80 cm in length. How long does it take for the waves to cross the tank?

Posted by undeadable on January 29, 2012 at 10:57 PM via web and tagged with physic, physics, science

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A wave generator set at 45 Hz produces a 30 mm wavelength that propagates across a shallow tank of water 80 cm in length. It has to be determined how long it takes for the waves to cross the tank.

To prevent one wave for interfering with another, each wave is bound to be generated after the previous has crossed the generator. As the wavelength of a wave is 30 mm and they are being produced at the rate of 45 per second. It takes a wave 1/45 seconds to travel 30 mm.

To travel 80 cm the wave takes (1/45)*(800/30) = .5926 s

The waves cross the 80 cm tank in 0.5926 s

How long does it take for the waves to cross the tank?

Posted by justaguide on January 29, 2012 at 11:07 PM (Answer #1)

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