Question

Spectrophotometer generally employs a 6V Xenon Arc Lamp, which emits radiation in a wavelength region of visible light.

(a) True

(b) False

This question was posed to me in examination.

This question is from Pneumotachometers topic in portion Pulmonary Function Analysers of Biomedical Instrumentation

Answer 1

Correct answer is (b) False

For explanation I would say: False, Spectrophotometers generally employ a 6 V tungsten lamp, which emits radiation in the wavelength region of visible light. Typically, it is 32 candle power. These lamps should preferably be operated at a potential of say 5.4 V when its useful life is estimated at 1200 h.