Question
In: Chemistry
which is higher in energy? Electromagnetic radiation with wavenumber 3000cm-1 or with wavelength 2 micro meter?
which is higher in energy? Electromagnetic radiation with wavenumber 3000cm-1 or with wavelength 2 micro meter?
Solutions
Expert Solution
wavenumber = 3000cm-1
wavelength = 2 micro meter
= 2 x 10^-6 m
= 2 x 10^-6 x 10^2 cm
= 2 x 10^-4 cm
wavenumber = 1 / wavelength
= 1 / 2 x 10^-4 cm
= 5000 cm-1
wavenumber = 5000 cm-1
energy = h C / wave length
= h C x wave number
energy is directly proportional to wave number . so
answer : higher energy is wavelength 2 micro meter
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