If T_1, T_2, and T_3 are the time periods of a given pendulum on the surface of the earth, at a depth 'h' in a mine and at an altitude 'h' above the earth's surface respectively, then

If T_1, T_2, and T_3 are the time periods of a given pendulum on the s

1.	If T_1, T_2, and T_3 are the time periods of a given pendulum on the surface of the earth, at a depth 'h' in a mine and at an altitude 'h' above the earth's surface respectively, then
Answer» `T_1 = T_2 = T_3` `T_2 LT T_1 lt T_3` `T_2 lt T_1 lt T_3` `T_1 GT T_2 gt T_3` ANSWER :C