Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 11
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When We Clap Our Hands, the Sound Produced is Best Described by - Physics

MCQ

When we clap our hands, the sound produced is best described by Here p denotes the change in pressure from the equilibrium value.

Options

  • \[p =  p_0   \sin\left( kx - \omega t \right)\]

  • \[p =  p_0   \sin  kx  \cos  \omega t\]

  • \[p =  p_0   \cos  kx  \sin  \omega t\]

  • \[p = \sum  p_{0n}   \sin  \left( k_n x - \omega_n t \right)\]

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Solution

\[p = \sum  p_{0n}   \sin  \left( k_n x - \omega_n t \right)\]

When we clap, there is a change in pressure, which sets a disturbance and forms a wave. However, this variation is not uniform every time we clap (unlike in the case of a sound wave). Hence, we sum up all the disturbances.

Concept: Wave Motion
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APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 16 Sound Waves
MCQ | Q 2 | Page 351
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