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Spherical waves are emitted from a 1.0 W...

Spherical waves are emitted from a `1.0 W` source in an isotropic non-absorbing medium. What is the wave intesity `1.0 m` from the source?

Text Solution

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The correct Answer is:
A, B, D

`I = (p)/(4pir^(2)) =(1.0)/(4pi(1)^(2)) = (1)/(4pi) W//m^(2)`
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Knowledge Check

  • A point source of sound is placed in a non-absorbing medium two points A and B are at the distance of 1 m and 2 m, respectively, from the source. The ratio of amplitudes of waves at A to B is

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