Question

In summer, the pendulum clocks

• A. become slow
• B. become fast
• C. give correct time
• D. gain time

Answer 1

The correct option is A become slow

The time period of pendulum clock is given by,

$T=2\pi \sqrt{\frac{l}{g}}$

During summer, length of pendulum increases due to which the time period $T$ increases and pendulum takes more time to complete one oscillation. Thus it becomes slow in summer.