Question

A picosecond in one trillionth of a second. How many picoseconds are there in 11 minutes?

Answer 1

There are 660000000000000 Picoseconds in 11 minutes. 

Answer 2

The required answer is $66\times 10^{13}$

Given,

A picosecond is one-trillionth of a second

That is,

$1 second=1\times 10^{12}$ picoseconds

So, in 11 minutes=$60\times11=660 seconds$

Then in 660 seconds

$66 second=660\times 10^{12} \\=66\times 10^{13}$

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