Answer:
[tex]\lambda=0.5m[/tex]
Explanation:
Wavelength is the distance between two successive crests of a wave or the distance it takes before the wave's shape repeats itself.
It's given as the velocity of the wave divided by it's frequency.
[tex]\lambda[/tex]-Distance between any two wave crests.
[tex]v[/tex]-velocity, speed at it the wave is moving in a given direction.
[tex]f[/tex]-frequency, number of waves going through a certain point in a acertain time. Measured in cycles/sec or Hz
f=750Hz
[tex]\lambda=\frac{v}{f}\\v=\frac{3000}{8}=375m/s\\\lambda=\frac{375m/s}{750Hz}\\\lambda=0.5m[/tex]