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## the wavelength of electromagnetic radiation is 400nm this wave number will be equal

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the wavelength of electromagnetic radiation is 400nm this wave number will be equal

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Mathematics
1 month
2021-08-02T02:22:16+00:00
2021-08-02T02:22:16+00:00 1 Answers
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## Answers ( )

Answer:Wavenumber of a wave is defined as

ν

~

=

λ

1

, where λ is the wavelength.

Given that wavelength of the photon is λ=400 nm=400×10

−9

m

Thus, wave number is

ν

~

=(400)

−1

nm

−1

=0.0025 nm

−1