Question

If the number of crests that pass a point in a given time increases, what has decreased?

Question options:

intensity


wavelength


frequency


amplitude

Answer 1

Wavelength decreases as frequency increases.
Imagine a heart rate graph. As the heart beats faster, frequency increases and the time between heartbeats decreases (wavelength).
Make sense that way?

Answer 2

Answer: The wavelength will decrease.

Step-by-step 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.