A) 524 Hz
B) 536 Hz
C) 537 Hz
D) 523 Hz
Correct Answer: A
Solution :
[a] Difference of \[{{f}_{A}}\]and \[{{f}_{B}}\] is 6 Hz |
If tension decreases, \[{{f}_{B}}\] decreases and becomes \[f_{B}^{'}\] . |
Now, difference of \[{{f}_{A}}\] and \[f_{B}^{'}=7\text{ }Hz\] (increases) |
So, \[{{f}_{A}}>{{f}_{B}}\] |
\[{{f}_{A}}{{f}_{B}}=6\text{ }Hz\] |
\[{{f}_{A}}=530\text{ }Hz\] |
\[{{f}_{B}}=524\text{ }Hz\](original) |
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