Q. The period of oscillation of a simple pendulum of constant length at surface of the earth is T. Its time period inside a mine will be :

 1995  187 MGIMS WardhaMGIMS Wardha 2005 Report Error

Solution:

Time period of a simple pendulum at the surface of earth, In a mine (below the surface of earth) value of 'g' will decrease, so time period 'T' will increase.