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The formula for the frequency of the pendulum is w2=g/l

if you wish to double your period w1, you want to have w2 = 2*w1

The needed length of the pendulum is then l2 = g / w22 = g /(4 * w12) = 0.25 * g / w12 = 0.25 * l1

l2 / l1 = 1/4

You must shorten the length of the pendulum to 1/4 of its former size.

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Q: How must the length of a pendulum be changed to double it's period?
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Related questions

What happen to the time period if its lenght of the pendulum is changed?

The time period of a pendulum is directly proportional to the square root of its length. If the length of the pendulum is increased, the time period will also increase. Conversely, if the length is decreased, the time period will decrease.


When the length of a pendulum increases what will it effect on the time period?

The period is proportional to the square root of the length so if you quadruple the length, the period will double.


How does the period of a pendulum change for length?

The period of a pendulum is directly proportional to the square root of its length. As the length of a pendulum increases, its period increases. Conversely, if the length of a pendulum decreases, its period decreases.


What happens when you double the mass of a pendulum?

Doubling the mass of a pendulum will not affect the time period of its oscillation. The time period of a pendulum depends on the length of the pendulum and the acceleration due to gravity, but not on the mass of the pendulum bob.


What happens to the period o a pendulum when its length is increased?

If the length of a pendulum is increased, the period of the pendulum also increases. This relationship is described by the equation for the period of a pendulum, which is directly proportional to the square root of the length of the pendulum. This means that as the length increases, the period also increases.


How does the length affect pendulum in a period?

The period of a pendulum is independent of its length. The period is determined by the acceleration due to gravity and the length of the pendulum does not affect this relationship. However, the period of a pendulum may change if the amplitude of the swing is very wide.


How does length effect the period of a pendulum?

A longer pendulum has a longer period.


What is the length of a pendulum with a period of 1.49 s?

pendulum length (L)=1.8081061073513foot pendulum length (L)=0.55111074152067meter


In simple pendulum if string is flexible then what is effect on time period?

multiply the length of the pendulum by 4, the period doubles. the period is proportional to the square of the pendulum length.


What happens to the period of a pendulum when the mass is doubled?

The period of a pendulum is not affected by changes in its mass as long as the length and gravitational acceleration remain constant. Therefore, doubling the mass of a pendulum will not change its period.


How can you increase the period of a pendulum?

Increase the length of the pendulum


Does the weight effect the period of a pendulum?

Yes, the period of a pendulum is not affected by the weight of the pendulum bob. The period is determined by the length of the pendulum and the acceleration due to gravity. A heavier pendulum bob will swing with the same period as a lighter one of the same length.