One a.m.u is defined as mass of: - Vidyadip

Question

One $a.m.u$ is defined as mass of:

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Answer

$\frac{1}{12}^{th }$ mass of one carbon $-12$ atom
One $a.m.u.$ is defined as mass of $\frac{1}{12}^{th}$ the mass of one carbon$-12$ atom.

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