Question

Period of oscillation of a pendulum when immersed in water

Answer 1

The Underwater Pendulum

length, L measured period in air measured period in water

.222 m 0.948±.004 sec 1.039±.005 sec

.274 m 1.059±.004 sec 1.160±.006 sec

.290 m 1.084±.004 sec 1.184±.005 sec