Question

(l
2. If the absorption of light by the coloured solution is 90% then its absorbance i) 10
(ii) 1
(iii) 0.1, (iv) 0.9
​

Answer 1

If the absorption of light by the coloured solution is 90% then it's absorbance is 1.

Answer 2

Answer:

option (ii)- 1

Explanation:

According to the Beer–Lambert law, the absorption of light by a solution is proportional to the characteristics of the solution: A = Ebc, where is the absorbing species' molar absorptivity, b is the path length, and c is the absorbing species' concentration. The logarithmic relationship between transmittance and absorbance is that 100% transmittance corresponds to 0 absorbance, while 10% transmittance corresponds to 1 absorbance value.

Hence it means 90 percent absorbance corresponds to 1 absorbance value.