Question:
The normal duration of I.Sc physics practical period in Indian colleges is 100 minutes. Express this period in microcenturies. 1 microcentury $=10^{-6} \times 100$ years.
Solution:
1 microcentury $=10-4$ years. $=10-4 \times 365 \times 24 \times 60 \mathrm{~min}=52.56 \mathrm{~min}$.
So, 100 min $=100 / 52.26$ microcentury $=1.9$ microcentury