A clever boy is kidnapped by some undistinguishable creature and kept locked in room he suspects that they took him to other planet,to verify it he does a simple pendulum experiment with a thread of length "L" and observes that the frequency of this pendulum is a quadruple of that of earth pendulum. Then what will be the increase or decrease in the acceleration due to gravity in comparisn with earth's gravitational acceleration and also it's value.
