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Subject :NSO    Class : Class 6

The bob of a simple pendulum is swinging between points X and Y. It takes 15.6 s to swing thirty times from X to Y and back to X. What is the time period of the pendulum?

A15.6 s
B1.92 s
C1.40 s
D0.52 s

can anyone say the solution.

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
answer is d is right

Ans 3:

Class : Class 6
Answer is B 1.92 sec

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