Question
Question: The length of the simple pendulum which ticks seconds is...
The length of the simple pendulum which ticks seconds is
A
0.5 m
B
1 m
C
1.5 m
D
2 m
Answer
1 m
Explanation
Solution
The time period of a simple pendulum is
Where L is length of the pendulum.
Or 
….. (i)
The time period of the simple pendulum which ticks seconds is 2 s.
Substituting in (i), we get
