The figures below show some vibrational modes of a circular plate.

As a consequence, isotopologues will have different sets of vibrational modes.

There is a second process (which I am not going to explain) that doesn't rely on a vibrational mode.

The metal causes the vibrational modes to start and stop again very quickly.

Each vibrational mode will contribute to the total molar heat capacity, however.

But a problem quickly arose when determining the vibrational modes of light.

A molecule can vibrate in many ways, and each way is called a vibrational mode.

Open and closed strings are generally associated with characteristic vibrational modes.

The shift in energy gives information about the vibrational modes in the system.

Each new vibrational mode is basically a different combination of the six shown above.