Answers

2015-02-27T18:26:14+05:30
A)This is because Sound waves cannot propagate in vacuum.. b) the one whose wavelength appears to be the least will have the highest pitch..
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Graph?
I've written... Number b) "the one whose wavelength .... "
I need the picture of the graph
The graph that seems to be the most CONGESTED...
Ok
2015-02-27T18:48:18+05:30
It is so because they need a material medium to travel. The lesser wavelength would be of a high pitched sound
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