If \(x\) and \(a\) stand for distance, then for what value of \(n\) is the given equation dimensionally…

If \(x\) and \(a\) stand for distance, then for what value of \(n\) is the given equation dimensionally correct? The equation is \(\int \frac{d x}{\sqrt{a^{2}-x^{n}}}=\sin ^{-1} \frac{x}{a}\).

Solution

Here, \(x^{n}\) has the same dimensions as \(a^{2}\). Thus, \(n=2\) will make the expression dimensionally correct.

Asked in: JEE Mains - Units and Dimensions - Chapter Test

Practice more Units and Dimensions questions on Aicharya