Question

Compare the time periods of two pendulums having equal lengths and masses of their bobs are
10g and 20g respectively.
​

Answer 1

Answer:

Given,

Weight of pendulum P = 10 gf

Weight of pendulum Q = 20 gf

As we know that time period of a simple pendulum does not depend on the mass(since the place of pendulums does not change hence the acceleration due to gravity will not change too, so their weight will be related in same proportion as their masses) of the bob but it depends on acceleration due to gravity and the effective length of the bob of simple pendulum.

So,

The ratio will be 1 : 1 as there will be no change in their time periods.

Explanation:

Answer 2

Answer:

Given,

Weight of pendulum P = 10 gf

Weight of pendulum Q = 20 gf

As we know that time period of a simple pendulum does not depend on the mass(since the place of pendulums does not change hence the acceleration due to gravity will not change too, so their weight will be related in same proportion as their masses) of the bob but it depends on acceleration due to gravity and the effective length of the bob of simple pendulum.

So,

The ratio will be 1 : 1 as there will be no change in their time periods

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