Question
Assertion $\quad: \ln y=A \sin (\omega t-k x),(\omega t-k x)$ is dimensionless.
Reason $\quad:$ Because dimension of $\omega=\left[M^0 L^0 T\right]$.
Reason $\quad:$ Because dimension of $\omega=\left[M^0 L^0 T\right]$.
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