Question

Compare the time periods of the two pendulums of lengths 1 m and 9 m.

Answer 1

Let T₁ and T₂ be the time periods of the two pendulums of lengths 1m and 9m, respectively.

`T_1/T_2 = (2pisqrt(1/"g"))/(2pisqrt(9/"g"))`

or , `T_1/T_2 = sqrt(1/9)`

or , `T_1/T_2 = 1/3`