calculate the frequency and time period of electromagnetic wave whose wave no. is 7.8m-1 and calculate the energy associated with the given electromagnetic wave
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The equation that relates wavelength, frequency, and speed of light is
c=λ⋅ν
c=3.00×108 m/s (the speed of light in a vacuum)
λ = wavelength in meters
ν = frequency in Hertz (Hz) or 1s or s−1.
So basically the wavelength times the frequency of an electromagnetic wave equals the speed of light.
FYI, λ is the Greek letter lambda , and ν is the Greek letter nu (it is not the same as a v).
To find wavelength (λ), the equation is manipulated so that λ=cν.
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