Given the mass of iron nucleus as 55.85u and a=56. Find the nuclear density
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Answer:
According to rutherford's relations radius of nucleus = ro×A13 ro = constant = 1.2×10−15 m
therefore
r = 1.2×10−15 ×56−−√3
r = 4.59 ×10−15 m
also,
1u = 1.67×10−27 kg
55.85 u = 9.327 ×10−26 kg = mass of nucleus of iron atom
nuclear density = mass of nucleus of iron atomvolume of nucleus
nuclear density = 9.327 ×10−26 kg43π×r3 =9.327 ×10−26 kg43π×(4.59 ×10−15 )3
nuclear density = 4.851×1018 kg/m^3
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- = =
- = =×
- The density of matter in neutron starts (an astrophysical object) is comparable to this density.
- This shows that matter in these objects has been compressed to such an extent that they resemble a big nucleus.
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