The pendulum makes 600 oscillations in 2 minutes. What is the frequency and period of the pendulum’s oscillation?

Frequency f = n / t, where n is the number of oscillations during time t.
t = 2 minutes = 120 s;
f = 600/120 c = 5 Hz.
The period is equal to the duration of one oscillation. The oscillation frequency f and the period T are related by the dependence:
T = 1 / f;
T = 1/5 Hz = 0.2 s.
Answer: f = 5 Hz, T = 0.2 s.