Physics

# If $L, M, N$ are physical quantities with different dimensions, then which of the following combinations can never be a meaningful quantity?

$\dfrac {L-M}{N}$

##### SOLUTION
$\dfrac{L-M} {N}$ can never be a meaningful quantity because we can never subtract two quantities with different dimensions.

For example think of subtracting 1 kg from 1m. It is fully absurd and has no meaning.

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Single Correct Medium Published on 18th 08, 2020
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