The circuit shown in the given figure in resonates at

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The circuit shown in the given figure in resonates at

1. all frequencies
2. 0.5 rad/sec
3. 5 rad/sec
4. 1 rad/sec

Correct Option: B

Input impedance of the circuit,

Z = 10 +		1	\|\|		4jω +	1
		jω				jω

= 10 +	[1 - 4ω²]
	jω[2 - 4ω²]