Physics

Problem

Pendulum

P

of length

L

has a time period of

1.5\,\text{s}

on Earth. Pendulum

Q

has length

4L

. Both pendulums are taken to another planet where the acceleration due to gravity is one-fourth that on Earth. What is the time period of pendulum

Q

on the new planet? a)

4.5\,\text{s}

3.0\,\text{s}

6.0\,\text{s}

12.0\,\text{s}