Wave nymber of radiation having wavelength 5000a
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Wave number =1/wavelength
=1/5000×10^-10
=2×10^6
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Wave number = 1/wave length
= 1/5000 * 10 ^ - 10
= 2* 10 ^ 6.
= 1/5000 * 10 ^ - 10
= 2* 10 ^ 6.
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