Question

8. It takes 0-2 s for a pendulum bob to move from mean
position to one end. What is the time period of.
pendulum
Ans. 0.83​

Answer 1

Answer:

In the figure, let 'B' be the mean position, 'A' be the end to which the bob traveled and 'C' be the other end.

Then A.T.Q.

B-A = 0.2 s --------- (1)

A-B = 0.2 s --------- (2

B-C = 0.2 s --------- (3)

C-B = 0.2 s --------- (4)

We know time period is the total time taken by a pendulum to move from mean position to one end and back to mean position and then to the other end and finally coming back to the mean position.

=> time period= (1)+(2)+(3)+(4) 

                          0.2+0.2+0.2+0.2

                          0.8 s