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1 amu is equal to
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By Expert Faculty of Sri Chaitanya
a
1.66×10−27kg
b
6.02×1023kg
c
1kg
d
1×10−3kg
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Correct option is A
.The atomic mass (ma or m) is the mass of an atom. Although the SI unit of mass is the kilogram (symbol: kg), atomic mass is often expressed in the non-SI unit atomic mass unit (amu) or unified mass (u) or dalton (symbol: Da), where 1 amu or 1 u or 1 Da is defined as 1⁄12 of the mass of a single carbon-12 atom, at rest.
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