The required answer is [tex]66\times 10^{13}[/tex]
Given,
A picosecond is one-trillionth of a second
That is,
[tex]1 second=1\times 10^{12}[/tex] picoseconds
So, in 11 minutes=[tex]60\times11=660 seconds[/tex]
Then in 660 seconds
[tex]66 second=660\times 10^{12} \\=66\times 10^{13}[/tex]
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