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Question

Nucleus radius of 6C12 is 3×1015 metre. What is density ratio of dC/dH2O?

A
1.76×1017
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B
1.76×1014
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C
1.76×107
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D
17.6×1017
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Solution

The correct option is C 1.76×1014
Density =M/V=M/((4/3)πr3) where r is 3×1015 and M is 12×1.66c×1024g
So density ratio is
1.76×1014 (water density is 1 gm/ml)

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