AP EAPCET 19-Aug-2021 Shift 1 Paper

Given,
Initial resonance frequency, fi=f
Initial capacitance and inductance be C1=C
and L1=L
Final capacitance and inductance one C2=4C
and L2=L
Let final frequency be f′.
Since, ω=

1

√LC

=2πf
where, ω and f and angular frequency and frequency.
∴f∝

1

√LC

⇒

f

f′

=√

L′C′

LC

=

√L4C

√LC

=√4=2
∴f′=

f

2