MCQ
The dimensional formula for $r.m.s.$ (root mean square) velocity is
- ✓${M^0}L{T^{ - 1}}$
- B${M^0}{L^0}{T^{ - 2}}$
- C${M^0}{L^0}{T^{ - 1}}$
- D$ML{T^{ - 3}}$
✓
Answer
Correct option: A.
${M^0}L{T^{ - 1}}$
a
The dimensional formula for the $RMS$ velocity is same as the normal velocity.
The dimensional formula for the $RMS$ velocity is same as the normal velocity.
So, dimension of $RMS$ velocity is $=\left[ M ^0 LT ^{-1}\right]$
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