Spectroscopy
Vibrational spectroscopy is

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

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Spectroscopy
Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance?

None of these
Because %T cannot be measured as accurately as absorbance
Because %T is dependant on the power of the incident radiation
Because absorbance is proportional to the concentration of the analyte, whereas %T is not

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Spectroscopy
Why must the voltage supplied to a tungsten lamp be very stable?

Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage
Because if it wasn't, the lamp would bum out
Because the lamp will only function at a specific voltage
All of these

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