Question

An Optical cell containing a solution was placed in a beam of light. The original intensity...


An Optical cell containing a solution was placed in a beam of light. The original intensity of the light was 100 units. After being passed through the solution, the intensity was 80 units. A second cell containing more of the same solution was also placed in the light beam behind the first cell. Calculate the intensity of radiation emerging from the second cell.

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Answer #1

Solution.

According to the Beer's law,

Let's suppose that one cell has a length of 1 cm:

An initial intensity of the second cell is 80 units;

Answer: 64 units.

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