Two identical sounds $S_1$ and $S_2$ reach at a point $P$ in phase. The resultant loudness at point $P$ is $n\,\, dB$ higher than the loudness of $S_1$. The value of $n$ is
Two identical sounds $S_1$ and $S_2$ reach at a point $P$ in phase. The resultant loudness at point $P$ is $n\,\, dB$ higher than the loudness of $S_1$. The value of $n$ is
- A
$2$
- B
$4$
- C
$5$
- D
$6$
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