What is the period of electromagnetic oscillations in an oscillatory circuit consisting

What is the period of electromagnetic oscillations in an oscillatory circuit consisting of a series-connected coil with an inductance of 5 mH and a capacitor with a capacity of 20 nF?

L = 5 mH = 5 * 10 ^ -3 H.
C = 20 nF = 20 * 10 ^ -9 F.
T-?
The period of free oscillations T in the oscillatory circuit is determined by the formula: T = 2 * P * √ (L * C), where P is the number Pi (3.14), L is the inductance of the coil, C is the capacitance of the capacitor.
T = 2 * 3.14 * √ (5 * 10 ^ -3 Hn * 20 * 10 ^ -9 F) = 62.8 * 10 ^ -6 s.
Answer: the period of free oscillations in the circuit is T = 62.8 * 10 ^ -6 s.