Calculate the frequency of a photon of this radiation (in hertz).?
2019-03-05 1:10 pm
An excited ion emits radiation at a wavelength of 490.9 nm in the visible range of the spectrum. Calculate the frequency of a photon of this radiation (in hertz).
回答 (3)
2019-03-05 3:54 pm
Speed of light, c = 3.00 × 10⁸ m/s
Wavelength, λ = 490.9 nm = 490.9 × 10⁻⁹ m
Frequency, f = c/λ = (3.00 × 10⁸ m/s) / (490.9 × 10⁻⁹ m) = 6.11 × 10¹⁴ Hz
Wavelength, λ = 490.9 nm = 490.9 × 10⁻⁹ m
Frequency, f = c/λ = (3.00 × 10⁸ m/s) / (490.9 × 10⁻⁹ m) = 6.11 × 10¹⁴ Hz
2019-03-05 1:16 pm
You would convert nm's to cm's to make it less punching in and from there you could either divided the speed of light or speed of sound by that.
So A= ammount of cm's
Speed of light in cms/A=high octave in hz, then you can divide by 2 over and over to get an audible octave.
Or you can go with the speed of sound which depends on temperature.
Say the temp is 68 degrees. Speed of sound travels 34,392.81 cm's per second. So 34,392.81/A=hz octaves.
So A= ammount of cm's
Speed of light in cms/A=high octave in hz, then you can divide by 2 over and over to get an audible octave.
Or you can go with the speed of sound which depends on temperature.
Say the temp is 68 degrees. Speed of sound travels 34,392.81 cm's per second. So 34,392.81/A=hz octaves.
2019-03-05 1:14 pm
f = c / lambda
where f = frequency
c = speed of light
lambda = wavelength
answer will be in (sec)^-1, which is Hertz
where f = frequency
c = speed of light
lambda = wavelength
answer will be in (sec)^-1, which is Hertz
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