Question

find the change in length of a second pendulum if the acceleration due to gravity at the place changes from 9.75 meters per second square to 9.8 meters per second square.​

Answer 1

Answer:

this is the required answer

Answer 2

Answer:

0.005

Explanation:

We know that T=2 seconds

T=2π√l/g

2=2π√l/g

L= g/π²

L1= 9.75/π²

L2=9.8/π²

∆L= L1-L2

∆L=1/π² (9.8-9.75)

∆L= 0.005 π²=10 (approx)