The unit of atomic mass, amu is replaced by $\mathrm{u}$, here u stands for

The unit of atomic mass, amu is replaced by $\mathrm{u}$, here u stands for
  1. unified mass
  2. united mass
  3. unique mass
  4. universal mass

Solution

u stands for unified mass in amu, the unit of atomic mass.

Asked in: MHT CET 2020 (12 Oct Shift 1)

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