Question about harmonic oscillation of a pendulum clock

Question

A pendulum clock - is a clock that uses a pendulum, a swinging weight, as its timekeeping element.

Pendulum's amplitude of oscillation decreases with the stretching of the spring. How does the accuracy of the clock change?

Answer 1

Recall the formula for the period of oscillation, T, of a pendulum of length L:

A longer pendulum swings slower. So changing the length L of the pendulum changes the period T, which affects the timekeeping accuracy. To better answer your question, I will need more details!