Stationary waves of frequency $300\text{ Hz}$ are formed in a medium in which the velocity of sound is…

Stationary waves of frequency $300\text{ Hz}$ are formed in a medium in which the velocity of sound is $1200\text{ ms}^{-1}$. The distance between a node and the neighbouring antinode is
  1. 1 m
  2. 2 m
  3. 3 m
  4. 4 m

Solution

Required distance $= \frac{\lambda}{4} = \frac{v / n}{4} = \frac{1200}{4 \times 300} = 1\text{ m}$

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