Question

If a pendulum takes 0.5 s to travel from A to B as shown in the following figure, find its time period and frequency.

Answer 1

Time period from A to 8 = 0.5s

For an ideal pendulum,
Time period from A to B = time period from B to C = time period from C to B = time period from B to A

Total time period, T = time period from A to B + time period from B to C + time period from C to B + time period from B to A

= 0.5 + 0.5 + 0.5 + 0.5

= 2s

Frequency f = `1/"T"`

=`1/2` = 0.5 Hz