What is the frequency of radiation of wavelength 600 nm
Answers
Answer:
Hi,
the general relationship for an EM wave is:
λ=cfλ=cf
where cc is the speed of light in the medium. Therefore, from your data, it is not possible to infer the frequency of the source generating the wave propagating with a wavelength of 600nm.
If one assumes that this wave is propagating in vacuum, which is a good assumption for light coming from the Sun, but not for a wave in a fiber cable for instance, then the speed of light is:
c0=299,792,458m/sc0=299,792,458m/s
therefore, inverting the first relation to express f:
f=c0λ≈299.8600∗1e15s−1f=c0λ≈299.8600∗1e15s−1
So your source frequency is quite close to 500 THz, or half PHz (peta-Hz)
Here’s a short video with a very close treatment of the problem, without hinting at the difference in speed for different mediums, and using the symbol νν (nu) for frequency
Answer:
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