Three simple pendulums have length of st...

Three simple pendulums have length of strings `49cms, 48 cms` and `47 cms` with diameters of the bobs `2cms, 4 cm` and `6 cm` respectively. Then their periods are in the ratio

`1 : 1 : 1`

`1 : 2 : 3`

`3 : 2 : 1`

`51 : 52 : 53`

Text Solution

Verified by Experts

The correct Answer is:

Effective length = length of string + radius of bob
i.e., 49 + 1 = 48 + 2 + 47 + 3
Time period remains same

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