How to find the period in a longitudinal wave? ?

To find the period in a longitudinal wave, you need to know the wavelength and the speed of the wave. The period is the time it takes for one complete cycle of the wave to pass a given point.

1. Determine the wavelength: The wavelength is the distance between two consecutive points in a wave that are in phase. It can be measured from crest to crest or trough to trough.

2. Determine the speed of the wave: The speed of a wave is the distance it travels per unit time. It can be calculated by dividing the distance traveled by the time taken.

3. Use the formula: The formula to calculate the period (T) of a wave is T = 1/f, where f is the frequency of the wave. The frequency can be calculated by dividing the speed of the wave by the wavelength.

4. Substitute the values: Substitute the values of the speed and wavelength into the formula to calculate the frequency.

5. Calculate the period: Once you have the frequency, you can calculate the period by taking the reciprocal of the frequency. The period is the time it takes for one complete cycle of the wave to pass a given point.

Note: Make sure to use consistent units throughout the calculations.

What if there's no frequency?