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If absorbance is plotted graphically against concentration, the graph is _________

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in Biomedical Instrumentation by (76.6k points)
If absorbance is plotted graphically against concentration, the graph is _________

(a) Parabola

(b) Increasing

(c) Straight line

(d) Decreasing

This 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

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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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