Spectroscopy
Which of the following will oscillate the fastest?

A small mass on a weak spring
A small mass on a stiff spring
A large mass on a stiff spring
A large mass on a weak spring

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Spectroscopy
Vibrational spectroscopy is

a flashlight through a prism and shake it
a large mass on a weak spring
a class of spectroscopic techniques which analyzes molecular motions
an Infrared spectroscopy

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Spectroscopy
In the past, IR spectra had to be aquired one wavelength at a time, which took a long time. Today quick spectra is due to the

None of these
absence of broad spectrum of wavelenth
light is faster today that it used to be
the Fourier Transfer Algorithm allows us to scan all frequencies at once

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