Question

The normal duration of I.Sc. Physics practical period in Indian colleges is 100 minutes. Express this period in micro centuries, 1 micro century $={10}^{-6}\times 100$ years.

Answer 1

Step 1, Given data

1 micro century $={10}^{-6}\times 100$ years

Step 2, Converting in micro century

We know that in one year there are 365 days and in one day there are 24 hours. In 1 hour there are 60 minutes.

So converting i micro century in minute

$={10}^{-4}\times 365\times 24\times 60$ min

Now we can write,

$\text{100 min}=\frac{1}{{10}^{-4}\times 365\times 24\times 60}\times 100$

$=\frac{{10}^5}{365\times 144}$

$=1.9$ microcenturies

Hence in the micro century the time period is written as 1.9 micro centuries.