Question

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If there are three different dimensional physical quantities P,Q and R, then which of the following mathematical relation is not meaningful?
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Answer 1

Hi mate

Every correct equation must have same dimensions on both sides of the equation. According to the problem P, Q and R are having different dimensions, since, sum and difference of physical dimensions, are meaningless, i.e., (P – Q) and (R + Q) are not meaningful.

Answer 2

⚡Answer :

According to the question, we can say that P and Q have different dimensions.

So  P - Q are not proper or can be said as non appropriate.

Also ,

PQ have the same dimensions as that of R.

So,

PQ/R  quantity are correct.

PR may have the same dimension as Q².

Therefore,

R + Q  is not possible at all .Hence, have different dimensions.

Hope it helps uh Ishu❤T_T

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