Answer:
The speed of the wave is 360 m/s.
A is correct.
Explanation:
Given that,
Frequency f = 1200 hertz
Wave length = 0.300 m
The velocity of light is the product of the frequency and the wavelength.
Frequency is the inverse of the time period.
Wave length is the distance between two identical point in the wave.
Formula of the velocity of the light is defined as,
[tex]v = f\times\lambda[/tex]
Where, v = velocity of light
f = frequency
[tex]\lambda[/tex] = wavelength
Put the value into the formula
[tex]v=1200\times0.300[/tex]
[tex]v=360\ m/s[/tex]
Hence, The speed of the wave is 360 m/s.
