CBSE Class 12-science Answered
two wave trains are approaching each other.
y1 = a sin 200 ? t y2 = a sin 208 ? t
The number of beats heard per second is :
Asked by | 06 Apr, 2012, 04:03: PM
Expert Answer
The number of beats heard per second is 4
Answered by | 09 Apr, 2012, 10:57: AM
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