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Two standing bodies producing progressive waves are given by ` y_(1) = 4 sin 400 pi t and y_(2) = 3 sin 404 pi t` One of these bodies situated very near to the ears of a person who will hear : |
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Answer» The equation of progressive waves are: `y_(1)=4sin(400pit), and ` `y_(2)=3sin(404pit)` `:. a =4 and b=3` `omega_(1)=2pin_(1)=400pi,n_(1)=200Hz` `omega_(2)=2pin_(2)=404pi,n_(2)=202Hz` No. of beats `//` sec `=n_(2)-n_(1)=202-200=2` `(I_(max))/(I_(min))=((a+b)^(2))/((a-b)^(2))=((4+3)^(2))/((4-3)^(2))=(49)/(1)` |
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