A) 9.3 Hz
B) 79 Hz
C) 930 Hz
D) None of these
Correct Answer: B
Solution :
\[f=\frac{1}{2\pi \sqrt{LC}}=\frac{1}{2\pi \sqrt{450\times {{10}^{-3}}\times 9\times {{10}^{-6}}}}\] \[=79\text{ }Hz\]
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