Question

The time periods of two simple pendulums at a place are in the ratio 3: 4.What will be the ratio of their length​

Answer 1

Answer:

9:16

Explanation:

Time period of simple pendulum is given as

$t = 2\pi \sqrt{l \div g}$

So we can see that T is directly proportional to sqrt of l

So if Time periods have ratio 3:4. The ratio of lengths will be square of this.