The wave velocity of louder sound is [2006]

Question

Waves $y_{1} = A \cos (0.5 π x - 100 π t)$ and $y_{2} = A \cos (0.46 π x - 92 π t)$ are travelling along the $x$ -axis. (Here $x$ is in $m$ and $t$ is in second) [2006]

Q. The wave velocity of louder sound is

Smart Achievers · Accepted Answer

(3)

Wave velocity $= \frac{ω}{k} = \frac{100 π}{0.5 π} = 200 m/s$

Solution

Q.
Waves $y_{1} = A \cos (0.5 π x - 100 π t)$ and $y_{2} = A \cos (0.46 π x - 92 π t)$ are travelling along the $x$ -axis. (Here $x$ is in $m$ and $t$ is in second) [2006]

Q. The wave velocity of louder sound is

1 100 m/s

2 192 m/s

3 200 m/s

4 96 m/s

Ans.
(3)

Wave velocity $= \frac{ω}{k} = \frac{100 π}{0.5 π} = 200 m/s$

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