Question

Two simple pendulums A and B have equal length, but their bobs weigh 50 gf and 100 gf respectively. What would be the ratio of their time periods?
Give reason for your answer.

Answer 1

Answer:

Ratio of Time Period would be 1:1

Explanation:

Time Period of pendulum doesn't depend on its mass.

2π√(L/g) is the Time Period of pendulum.

So, Time Period doesn't depend on mass of the bob.

So, both pendulum will have same Time Period if length of string attached to it is same.

Hence, 1 : 1 would be the answer.

Answer 2

Answer:

My answer would be 1:1

Explanation:

Time period (T) =$2\pi \sqrt{\frac{l}{g} }$

Here, Time period is directly proportional to length of pendulum, Since the length of both the pendulums are same and time period is independent of mass of bobs . Therefore, the ratio of time period would be 1:1