Question
Compare the speeds of light of wavelength 4000 angstrom and 8000 angstrom in vacuum
Answers
The speed of light is the same for all wavelengths in vacuum. According to Einstein's theory of relativity, the speed of light in vacuum is a constant value of 299,792,458 meters per second (or about 3 x 10^8 m/s). Therefore, the speeds of light with wavelengths of 4000 angstrom and 8000 angstrom are the same in vacuum and equal to 299,792,458 meters per second.
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