Question

can anyone tell me how to calculate
a) the period of the wave
b) frequency of the wave
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Answer 1

Answer:1) How do you calculate the period of a wave?=)The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz). The unit hertz (Hz) was once called cps = cycles per second.

2) frequency of wave=)Wave frequency is the number of waves that pass a fixed point in a given amount of time. The SI unit for wave frequency is the hertz (Hz), where 1 hertz equals 1 wave passing a fixed point in 1 second.

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Answer 2

Answer:

Frequency of a Wave

Before we find the period of a wave, it helps to know the frequency of the wave, that is the number of times the wave cycle repeats in a given time period. This graph shows us five different waves with different frequencies. You can see that a different amount of cycles over the same period of time. We could find the exact number by counting the peaks or troughs. The red wave has the lowest frequency among the five because it has the least number of repeating cycles, and the pink wave has the highest frequency because it has the highest number of repeating cycles.

Wave Frequency

Frequency (f), can be obtained by dividing the wave's velocity, usually symbolized by the letter v, by its wavelength. Remember, we represent it with the Greek symbol: lambda. We usually measure the wavelength in meters and the velocity in meters per second. The frequency found using these units will be measured in Hz (hertz), another way of saying cycles per second.

Let's say we determine a wave moves at 60 Hertz; that wave will have 60 cycles per second. When writing formulas, Hertz is usually abbreviated to Hz.

Formula For Frequency

Finding a Wave Period

So how can knowing the frequency help us find a wave period? The higher the frequency of a wave, the lower the wave period. After all, if you're going to fit more cycles into a certain period of time, the cycles need to be shorter.

Wave Period Formula

We can say that the frequency and wave period are inversely proportional to each other, so if the frequency increases, the period decreases, and vice-versa. In other words if the frequency is large, then the period is short and if the frequency is small, then the period is long.

Remember that wavelength and velocity both affect the frequency, so we can also say, the higher the wavelength, the higher the wave period and the lower the velocity, the higher the wave period.'

The wave period is actually the reciprocal of the frequency, which means that any wave will have a wave period of 1 over the wave's frequency. The standard unit for period is in seconds, abbreviated as the letter S.