The equation to use in this case is:speed (of the wave) = wavelength x frequency If the frequency is in hertz, and the wavelength is in meters, the speed will be in meters/second.
Wavelength = speed/frequency = 30/10 = 3 meters
Just divide the speed of light (in meters/second) by the frequency (in hertz) - that will give you the wavelength (in meters). You can then convert that to nm.
Just multiply the wavelength (in meters) with the frequency (in Hertz) to get the speed (in m/s).
The formula is speed of light (3x108)=Wavelength in meters times frequency in hertz wavelength really=5x10-9 so frequency=6x1016 Hertz or cycles per second
Convert that to meters. Then divide the speed of light (in meters/second) by the wavelength. The answer will be in hertz.
You get a speed. If the 'Hertz' is the frequency of a particular wave, and the 'meters' is the wavelength of the same wave, then their product is the speed of that wave.
The frequency is 1/5 = 0.2 Hertz. The wavelength is irrelevant in this question.
Wavelength = (speed) / (frequency) = 20/4 = 5 meters.
If you multiply the wavelength (in meters) and the frequency (in Hertz), you will get the speed of the wave (in meters per second).
Wavelength is in meters, the frequency is in hertz. period is in seconds and the wave speed is in meters per second.