Question

if the Length is increased by 9 times.what will be the time period in a simple pendulum.​

Answer 1

The periodic-time of a simple pendulum is given by

T=2π

g

l

T

1

=T,l

1

=l,l

1

=9l

T

2

T

1

=

l

2

l

1

=

9

1

=

3

1

T

2

=3T

1

=3T.