Pendulum of length has a time period of on Earth

PHYSICS · Single correct · CBSE · Physics · Oscillations · Oscillations

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}

(b)

3.0\,\text{s}

(c)

6.0\,\text{s}

(d)

12.0\,\text{s}