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Question

The dimensional formula for r.m.s. (root mean square) velocity is

A
$$M^0LT^{-1}$$
B
$$M^0L^0T^{-2}$$
C
$$MLT^{-3}$$
D
$$M^0L^0T^{-1}$$
Solution
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Correct option is A. $$M^0LT^{-1}$$
The dimensional formula for the RMS velocity is same as the normal velocity.

So, dimension of RMS velocity is = $$[M^0LT^{-1}]$$

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