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 Discussion Response Post to:
irodov
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Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 20 Nov 2007 04:23:52 IST
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a cos 2.1 t cos 50t = a/2 { cos 52.1 t + cos 47.9t}
so angular freq are 52.1 s-1 and 47.9 s -1
While finding beat period the variable amplitude bcums max when
2.1 t = n pi
so interval btween two maxima is pi / 2.1 = 1.5 s
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