Enter the force constant (erg/cm^2) and the reduced mass (g) into the Vibrational Frequency Calculator. The calculator will evaluate the Vibrational Frequency.
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Vibrational Frequency Formula
The following two example problems outline the steps and information needed to calculate the Vibrational Frequency.
VF = 1 / (2*pi*c) * SQRT ( k / u )
Variables:
- VF is the Vibrational Frequency (1/cm)
- k is the force constant (erg/cm^2)
- u is the reduced mass (g)
- c is the speed of light (29979245800 cm/s)
How to Calculate Vibrational Frequency?
The following steps outline how to calculate the Vibrational Frequency.
- First, determine the force constant (erg/cm^2).
- Next, determine the reduced mass (g).
- Next, gather the formula from above = VF = 1 / (2*pi*c) * SQRT ( k / u ) .
- Finally, calculate the Vibrational Frequency.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
force constant (erg/cm^2) = 14
reduced mass (g) = 20
VF = 1 / (2*pi*c) * SQRT ( k / u ) = ?
