The frequency of a sound wave is $n$ and its velocity is $v$. If the frequency is increased to $4n$, the…

The frequency of a sound wave is $n$ and its velocity is $v$. If the frequency is increased to $4n$, the velocity of the wave will be
  1. $v$
  2. $2v$
  3. $4v$
  4. $v/4$

Solution

Velocity of sound is independent of frequency. Therefore, it is same for frequencies $n$ and $4n$, i.e. $v$.

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