Question

A transistor oscillator using a resonant circuit with
an inductor L (of negligible resistance) and a
capacitor C in series produce oscillations of
frequency f. If L is tripled and C is changed to 4C,
then new frequency will be
(1) f/4
(2)2√3f
(3)f/2√2
(4)f/2√3​

Answer 1

the answer of this question is 2/2√2