Spectroscopy - Medical Science

Q1:

Molar absorbtivity is the measure of the

A amount of light absorbed per unit length

B amount of light absorbed per unit concentration

C amount of light reflected and absorbed per unit concentration

D None of the above

ANS:B - amount of light absorbed per unit concentration

Molar absorptivity =A/CL.

Molar absorptivity is depended upon path length, then why the answer is B?