In what wavelength range does the receiver operate if the capacitance of its oscillatory circuit

In what wavelength range does the receiver operate if the capacitance of its oscillatory circuit can be changed from 60 to 240 pF, and the inductance is 50 μH?

Given:
C1 = 60pF = 6 * 10 ^ -11F,
C2 = 240pF = 2.4 * 10 ^ -10F,
L = 50μH = 5 * 10 ^ -5H,
s = 3 * 10 ^ 8m / s.

Decision:
The wavelength will be:
λ = C / f, where λ is the wavelength in meters, C is the capacitance in farads and f is the frequency in hertz;
f = 1 / (2π√LC) = C / λ, where L is the inductance in henry;
λ = 2πs√LC;

λ1 = 2 * 3.14 * 3 * 10 ^ 8m / s * √ (5 * 10 ^ -5Hn * 6 * 10 ^ -11F) = 103m;
λ2 = 2 * 3.14 * 3 * 10 ^ 8m / s * √ (5 * 10 ^ -5H * 2.4 * 10 ^ -10F) = 206.5m.