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Spectroscopy - Medical Science

Q1:

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

A Because if it wasn't, the lamp would bum out

B Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage

C Because the lamp will only function at a specific voltage

D All of the above

ANS:B - Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage

No answer description is available.