M.Sc. Bio-Physics (PU-CET P.G) 2019 Panjab University Entrance Exam With Answers

Practice Mode:
5.

The half life period of a first order reaction is 60 minutes. What percentage will be left over after 240 minutes?

A: 6.25%
B: 4.25%
C: 5%
D: 6%

The answer is: A