Question

Optical density of plasma of blood is 0.07. find the transmittance of plasma.

Answer 1

Optical density $D$ relates to the transmittance $T$ in the following way:

$$D = -\log_{10}T$$

Thus, the transmittance will be:

$$T = 10^{-D} = 10^{-0.07} \approx 0.85$$

Answer. 0.85.