If absorbance is plotted graphically against concentration, the graph is _________(a) Parabola(b) Increasing(c) Straight line(d) DecreasingThis question was posed to me in an online interview.My question is based upon Respiratory Gas Analysers in section Pulmonary Function Analysers of Biomedical Instrumentation

If absorbance is plotted graphically against concentration, the graph

1.	If absorbance is plotted graphically against concentration, the graph is _________(a) Parabola(b) Increasing(c) Straight line(d) DecreasingThis question was posed to me in an online interview.My question is based upon Respiratory Gas Analysers in section Pulmonary Function Analysers of Biomedical Instrumentation
Answer» The correct choice is (c) Straight line For explanation I WOULD say: If absorbance is plotted graphically against concentration, a straight line is obtained. A graph derived from the transmittance data will not be a straight line unless transmittance (or PERCENT transmission) is plotted on the LOG axis of a semi-log PAPER.

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