Please answer the question no 119 as soon as possible thanks
Chandan Kumar , 6 Years ago
Grade 11
Wave Motion> Please answer the question no 119 as soon...
1 Answers
Phanindra
Last Activity: 6 Years ago
According to principle of superposition...
y = y1 + y2
So...y = 0.4 [ sin(500pieT) + sin(508pieT) ]
Use sinc + sind formula..
Sinc + sind = 2sin[(c+d)/2].cos[(c-d)/2]...
Then u will get... Y = 0.8[sin(504pieT).(cos4pieT)]
Here, ￦ (omega) = 504pieT
We know that...￦ = 2pie×(n)
So... 504pie = 2pie × n
so...n = 252 hz... I think the answer is 3rd option...
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