A) 680 Hz, 660 Hz and 640 Hz
B) 640 Hz, 660 Hz and 680 Hz
C) 680 Hz, 640 Hz and 660 Hz
D) 660 Hz, 680 Hz and 640 Hz
Correct Answer: A
Solution :
at \[A,\]\[{{n}_{1}}=\frac{330+26\times \frac{140}{364}}{330}\times 660=680\,hz.\] at\[O,\]\[{{n}_{2}}=\frac{330}{330}\times 660=660\,hz\] at\[B,\]\[{{n}_{3}}=\frac{330-26\times \frac{140}{364}}{330}\times 660=640\,hz\]You need to login to perform this action.
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