MCQ
Which one of the following does not represent a travelling wave
- A$y = \sin (x - v\,t)$
- B$y = {y_m}\sin k(x + v\,t)$
- C$y = {y_m}\log (x - v\,t)$
- ✓$y = f({x^2} - v\,{t^2})$
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$\begin{array}{|c|c|c|c|c|} \hline & A & B & C & D \\ \hline P & 5 & 4 & 12 & 6 \\ \hline V & 7 & 6 & 1 & 3 \\ \hline \end{array}$

$Reason :$ Peak emission wavelengths of a black body is proportional to the fourth-power of temperature.

