Question

.The time periods of two pendulums are in the ratio of 1 : 9 .What is the ratio of their lengths ?​

Answer 1

2π

g

l

1

:2π

g

l

2

::2:1

l

1

:

l

2

::2:1

square both sides

(

l

2

l

1

)

2

=(

1

2

)

2

l

1

:l

2

::4:1

Answer 2

Answer:

your and is 4:9...

Explanation:

okk your ans is this in the pic ....