Given number is 4,8100,000,000,000.
In this number of zero is 11. So we can write it as [tex]481 * 10^{11}[/tex]
But for scientific notation we will enter decimal after two place in reverse direction.For this we will also multiply number by 10^2.
So number will be [tex]4.81 * 10^{11} *10^2 = 4.81 * 10^{13}[/tex]
So fourth option is correct.
