What is the relationship between period and frequency?

The relationship between period and frequency is founded on their definitions in the context of wave physics or oscillatory motion. The period refers to the time it takes for one complete cycle of a wave or oscillation to occur. Frequency, on the other hand, indicates how many complete cycles occur in one second.

The correct relationship is expressed by the formula: period = 1/frequency. This means that if you know the frequency of an oscillation, you can calculate the period by taking the reciprocal of that frequency. For example, if the frequency is 2 Hz, this indicates two cycles per second, and the period would be 1 divided by 2, resulting in a period of 0.5 seconds. Therefore, option B accurately captures this fundamental concept in physics.

Understanding this relationship is critical for studying various physical phenomena, including sound waves, light waves, and other oscillatory systems.