A hollow sphere of simple pendulum is first filled with mercury and then with water. The time periods are in the ratio if their densities are in the ratio 13.6:1

A hollow sphere of simple pendulum is first filled with mercury and th

1.	A hollow sphere of simple pendulum is first filled with mercury and then with water. The time periods are in the ratio if their densities are in the ratio 13.6:1
Answer» `1:1` `1:2` `1:13.6` `13.6:1` ANSWER :A