Loads of the same mass were attached to springs, the stiffness of which is respectively 100 N / m and 900 N / m. Compare

Loads of the same mass were attached to springs, the stiffness of which is respectively 100 N / m and 900 N / m. Compare the oscillation periods of these pendulums

oscillation periods of spring pendulums
T = 2pi√m / k
1 load
T1 = 2pi√m / 100 = 1/10 * 2pi√m
2 load
T2 = 2pi√m / 900 = 1/30 * 2pi√m
T1 / T2 = 1/10 * 2pi√m / 1/30 * 2pi√m = 30/10 = 3 times
the oscillation period of the first cargo is three times the period of the second cargo