Physics-
General
Easy
Question
There is a simple pendulum hanging from the ceiling of a lift. When the lift is stand still, the time period of the pendulum is T . If the resultant acceleration becomes 
, then the new time period of the pendulum is
- 2 T
- 4 T
The correct answer is: 2 T
Time period of a simple pendulum of length , is given by
Where, g is acceleration due to gravity.
When 
New, time period is
Dividing Eq. (ii) by Eq. (i), we get
Hence, new time period becomes twice of the original value
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