Awater wave is generated in a ripple tank by an oscillator that vibrates 50 times in 30 seconds. a given trough of the wave travels 50.0 cm in 15 seconds. what is the wavelength of the water wave? produce all your workings.

There are 50 vibrations in 30 seconds

So frequency is given by

Now we can also find the speed of wave

speed is defined as ratio of distance and time

now to find the wavelength we can use the relation between frequency, wavelength and speed

this relation is given as

so the wavelength is 2 cm

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