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Why is wavelength all you need to know to calculate EM wave frequency in a vacuum?
Wiki User
∙ 13y ago
Because the speed of light in a vacuum is constant(c). hence the formula, v=f.w, where v is velovity, f is frequency and w is wavelength, can be used to calculate the frequency.
Wiki User
∙ 13y ago
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If you know the wavelength of an electromagnetic wave in a vacuum you can calculate its?
Momentum, energy, frequency, and wave number (but not wave vector.)
How do you calculate the amplitude given the frequency and the wavelength?
Amplitude doesn't depend on frequency or wavelength, so even if you know them, you have no way to calculate amplitude.
Frequency for UV waves?
The frequency ranges between 450 THz and 950 THz.
Describe how to calculate each of wavelength speed and frequency if you know the other two factors What is the wavelength of a 25 hertz wave traveling at 35 cms?
1). Frequency = (speed) / (wavelength)2). Wavelength = (speed) / (frequency)3). Speed = (frequency) x (wavelength)Use #3:Wavelength = (35 cm/s) / (25 Hz) = 1.4 cm
How do you calculate conductivity of medium when you know velocity wavelength and frequency?
I don't think that's enough information.
If you know the vacuum wavelength of any form of electromagnetic radiation you can determine its frequency because?
You know its speed in vacuum, and frequency = (speed) / (wavelength) .
If you know the wavelength of an electromagnetic wave in a vacuum you can calculate its?
Momentum, energy, frequency, and wave number (but not wave vector.)
How do you calculate the amplitude given the frequency and the wavelength?
Amplitude doesn't depend on frequency or wavelength, so even if you know them, you have no way to calculate amplitude.
How do you calculate the frequency of light emitted in chemicals?
There are several ways to calculate the frequency of light emitted or absorbed by different chemicals, and they depend on what you already know. For example, if you know the energy of the particle, then you can calculate frequency from E = planck's constant x frequency and solve for frequency. If you happen to know the wavelength, then you can use C = wavelength x frequency and solve for frequency (where C = speed of light).
How do you find wavelength of a wave?
The speed of a wave equals the frequency times the wavelength (speed = frequency x wavelength). Therefore, the wavelength would equal the speed divided by the frequency. Also, the speed of a wave in a vacuum is the speed of light, c, which is a constant.
How do you convert frequency from meters to megahertz?
"Meters" is not frequency. It's wavelength. If you know the wavelength in meters, divide 300 by it, and the result is the frequency in MHz. If you know the frequency in MHz, divide 300 by it, and the result is the wavelength in meters.
Frequency for UV waves?
The frequency ranges between 450 THz and 950 THz.
Describe how to calculate each of wavelength speed and frequency if you know the other two factors What is the wavelength of a 25 hertz wave traveling at 35 cms?
1). Frequency = (speed) / (wavelength)2). Wavelength = (speed) / (frequency)3). Speed = (frequency) x (wavelength)Use #3:Wavelength = (35 cm/s) / (25 Hz) = 1.4 cm
How do you calculate conductivity of medium when you know velocity wavelength and frequency?
I don't think that's enough information.
What do you need to know to calculate the frequency of a wave?
wavelength since frequency =hc/lambda h=plancks constant and c=velocity of light
What is meant by vacuum wavelength?
Vacuum wavelength is the wavelength that is measured if the wave is passing through a vacuum. To get the wavelength in a medium you need to know the refractive index.
How do you find velocity when only the frequency is given?
The question is incomplete. Frequency of what? If it refers to electromagnetic waves, you won't need even frequency to determine velocity (in a vacuum), because it will always be c (the speed of light). You can compute the speed of other kinds of waves if you know the frequency and wavelength, but not from frequency alone. The formula is frequency x wavelength = velocity If the waves are electromagnetic, and you have only frequency, you can compute the wavelength using the same formula.
