What is the frequency of light of wavelength 7000 Å?
回答 (1)
2016-08-03 3:29 am
✔ 最佳答案
frequency = velocity of light/wavelength of light = (3 x 10⁸ m/s) / (7000 x 10ˉ¹º m) = 4.2857 x 10¹⁴ Hz
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