Spectroscopy and Molecular Absorption (4D)
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QUESTION
What does the IR spectrum x-axis usually report: wavelength, frequency, or wavenumber?
QUESTION
What is absorbance in terms of incident and transmitted light intensities?
QUESTION
What is wavenumber and how is it related to wavelength?
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ANSWER
ν
~
=
1
λ
\tilde{\nu} = \frac{1}{\lambda}
ν
~
=
λ
1
. Wavenumber is the reciprocal of wavelength, often used in spectroscopy for its proportionality to energy.
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