DIRECTIONS: On the basis of following diagram/ picture answer the ques – McqOptions

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1.	DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: A pendulum swings backwards and forwards passing through Y, the middle point of the oscillation. The first time the pendulum passes through Y a stopwatch is started. The twenty-first time the pendulum passes through Y, the stopwatch is stopped. The reading is T. What is the period of the pendulum?
A.	T/40
B.	T/20
C.	T/21
D.	T/10
Answer» E.

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