Question

Question 88:

Write the number of seconds in scientific notation.
$\begin{array}{ccc}S.N.& Units& Valueinseconds\\ 1.& 1minute& 60\\ 2.& 1hour& 3,600\\ 3.& 1day& 86,400\\ 4.& 1month& 2,600,000\\ 5.& 1year& 32,000,000\\ 6.& 10year& 3,20,000,000\end{array}$

Answer 1

1. $1min=60s=6.0\times {10}^{1}s=6\times {10}^{1}s$
2. $1h=3,600s=36\times {10}^{2}s=3.6\times 10\times {10}^{2}s=3.6\times {10}^{3}s$
3. $1day=86,400s=864\times {10}^{2}s=8.64\times {10}^2\times {10}^{2}s=8.64\times {10}^{4}s=8.6\times {10}^{4}s$
4. $1month=2,600,000s=26\times {10}^{5}s=2.6\times 10\times {10}^{5}s=2.6\times {10}^{6}s$
5. $1yr=32,000,000s=32\times {10}^{6}s=3.2\times 10\times {10}^{6}s=3.2\times {10}^{7}s$
6. $10yr=3,20,000,000s=32\times {10}^{7}s=3.2\times 10\times {10}^{7}s=3.2\times {10}^{8}s$