If the number of crests that pass a point in a given time increases, what has decreased? question options: intensity wavelength frequency amplitude

The wavelength will decrease.

Explanation:

Frequency is the number of  vibrations in one second. It is also defined as the number of crests that pass a point in a given time.

Wavelength is the distance between the two consecutive crests or troughs.

The frequency and the wavelength has an inverse relationship.

In the given problem, if the number of crests that pass a point in a given time increases then the wavelength will decrease in this case.

Therefore, the correct answer is wavelength.

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