In LCR circuit, capacitor C is changed to 4C, then what should be the value of L to keep resonance frequency same

In an LCR circuit the capacitance is changed from C to 4C. For the same resonant frequency, the inductance should be changed from L to

In a series resonant L-C-R circuit, the capacitance is changed from C to 3C. For the same resonant frequency, the inductance should be changed from L to

In a series resonant L-C-R circuit, the capacitance is changed from C to 3C. For the same resonant frequency, the inductance should be changed from L to

For any LCR circuit L = 0.405H and C= 25muF . If the resistance is zero then what is the value of the resonance frequency?

In an LCR series resonant circuit, the capacitance is changed from C and 4C. For the same resonant frequency,the inductance should be changed from L to: