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The bob of a simple pendulum is spherically hollow bob fixed with water a plug hole near the bottom of the oscillation bob gets suddenly unplugged during the observation till water is coming out the time period of oscillation would A increase towards a saturation value B remind Unplugged C first decrease and then increase to the original value D first increase and then decrease to the original value Please explain how to solve please give answer with explainion

 The bob of a simple pendulum is spherically hollow bob fixed  with water a plug hole near the bottom of the oscillation bob gets  suddenly unplugged during the observation till water is coming out the time period of oscillation would
A increase  towards a saturation value
B remind Unplugged
C first decrease and then increase to the original value
D first increase and then decrease to the original value
Please explain how to solve please give answer with explainion 

Grade:

1 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
The key to solve this problem is the length of the pendulum. The length of the pendulum is the measure of the distance between the point of suspension and the center of mass of the bob. When water is filled completely within the bob, the center of mass of the bob lies at the center of the bob.
When the water is completely out of the bob, the center of mass of the bob returns to its initial position (the center of the bob) again. So, the time period becomes T again.
 
We can conclude that, the time period first increases and then decreases.

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