MCQ
Quality of a musical note depends on
- ✓Harmonics present
- BAmplitude of the wave
- CFundamental frequency
- DVelocity of sound in the medium
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$\pi$
$\frac{\pi}{2}$
$2\pi$
$4\pi$
$x = 3\,sin\, 20\pi t + 4\, cos\, 20\pi t$ ,
where $x$ is in $cms$ and $t$ is in $seconds$ . The amplitude is ..... $cm$