Physics

Problem

The frequency of a simple pendulum with length

L_1 = 1.0\,\text{m}

is to be doubled. Which of the following is the closest new length

L_2

required to achieve this change at the same place? a)

0.50\,\text{m}

0.125\,\text{m}

0.25\,\text{m}

2.0\,\text{m}