# Question #931da

##### 2 Answers

The standard for this type of problem is the universal wave equation,

#### Explanation:

Bear with me, I will be brief:

Speed is distance over time, so time is distance over speed:

in the case of a wave, the distance travelled is the length of the wave, or the wavelength,

so

and from the universal wave equation,

so

and

Which, if you stop to thing about it makes perfect sense, since the time for one wave to pass by is the period of the wave

So the only value you actually need to solve this is the frequency!

The time taken for a wave to pass a point is the period,

#### Explanation:

Waves have three characteristics: velocity

These characteristics are related by the formula:

The unit of frequency, hertz

In this question, we want the inverse of the frequency. If 300 waves pass a point in 1 second, how many seconds does it take for 1 wave to pass the same point? The answer is