Question

Speed of light in vaccum is $300000000\text{m/s}$. Express it in standard form.

Answer 1

The standard form of any number is written by placing decimal after 1 digit from the left-hand side.

For example - $123654$ in standard form will be$=1.23654\times {10}^5$

Speed of light in vaccum = $300000000\text{m/s}$

= ${\text{3.0×10}}^8\text{m/s}$

Hence, the speed of light in vaccum is $3.0\times {10}^8\text{m/s}$..