Question

How much time does the bob of a second’s pendulum take to move from one extreme of its oscillation to the other extreme?

Answer 1

A second’s pendulum is defined as a pendulum with a time period (T) of 2 seconds, meaning it takes 2 seconds to complete one full oscillation (from one extreme to the other and back).

One full oscillation = 2 seconds

Time from one extreme to the other is half of a full oscillation (half period), because it goes from one extreme to the other (half the motion).

∴ Time taken from one extreme to the other = `T/2​ = 2/2`​ = 1 second.