Would the temperature change be 1.5% or 150%? Wouldn't I need the original length or the Time?

The period ofa pendulum is given by the equation shown below, where L is the length of the pendulum in feet, 9 is the acceleration due to gravity, and Tis the time in seconds. i. T: 2H\" 9 . i . . 3 The pendulum has been subjected to an \ crease In temperature such that the length has Increased by 3% (a) Find the approximate percent change in the period. E % (b) Using the result in part (a), nd the approximate error in this pendulum clock in 1 day. S min