Question

If the length of a simple pendulum is doubled ,what will be the change in its time period ?

Answer 1

Answer:

Change in time period= (✓2-1)T

Explanation:

T us directly proportional to ✓L

so if L is doubled then new time T' will be ✓2T

Change in time= T'-T=✓2T-T= (✓2-1) T