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The fraction of volume occupied by the nucleus with respect to the total volume of an atom is.

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The fraction of volume occupied by the nucleus with respect to the total volume of an atom is.
A. `10^-15`
B. `10^-5`
C. `10^-30`
D. `10^-10`
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Correct Answer - A
(a) Volume fraction `("Volume of nucleus")/("Total vol. of atom")`
=` ((4//3)pi(10^-13)^3)/((4//3)pi(10^-8)^(3)) = 10^-15`.
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