42. a 0.1% (w/v) solution of a protein absorbs 20% of the incident light. what fraction of light is transmitted if the concentration is increased to 0.4% ? [cor

42. A 0.1% (w/v) solution of a protein absorbs 20% of the incident light. What fraction of light is transmitted if the concentration is increased to 0.4% ? [Correct to two decimal places V7 Y7 and XY