This is the number of vibrations that occur per second.

Listen 1

Listen 1

This is the distance between two consecutive points in phase.

(It is the actual length of the wave before it repeats itself.)

Listen 3

(It is the actual length of the wave before it repeats itself.)

Listen 3

Calculate its

Longitudinal

The direction of**vibrations** and the direction of the **movement** are in the same direction.

Listen 7

The direction of

Listen 7

This is the **duration** of a single wave, measured in **s** (seconds)

This is the time for which a single wave existed.

This is the time for which a single wave existed.

T = ^{1}/_{f}

Calculate the frequency.

T =^{1}/_{f}

2 x 10^{-3} = ^{1}/_{f}

f = 500Hz

T =

2 x 10

f = 500Hz

Since

v = fλ

340 = 500λ

λ = 0,68 m