Onder of magnitude of density of uranium nucleus is , [m = 1.67 xx 10^(-27 kg]`
A
`10^(20)kg//m^(3)`
B
`10^(17)kg//m^(3)`
C
`10^(14)kg//m^(3)`
D
`10^(11)kg//m^(3)`
Text Solution
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The correct Answer is:
B
Naclear density of an atom number `A`, `d = (mass)/(volume) = (A 1.67 xx 10^(-27))/((3)/(4)pi (1.25 xx 10^(-15) A^(1//3)I^(3))` `[:.V = (4)/(3) pi r^(3), R = R_(0) A^(1//3), R_(0) = 1.25 xx 10^(-15)]` `:.d = 2 xx 10^(17 kg//m^(3)`
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