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Question

How many years it would take to spend Avogadro's number of rupees at the rate of 1 million rupees in one second.(NA=6.023×1023)

A

19.098 x 1019 years

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B

19.098 x 109 years

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C
19.098
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D

None of these

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Solution

The correct option is B

19.098 x 109 years


Since 106 rupees are spend in 1 sec.
Therefore, 6.02×1023 rupees are spent in =1×6.022×1023106
=1×6.023×102310660×24×365=19.098×109years.

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