What is the frequency of a wave if its period is 0.2 seconds?

Frequency is the reciprocal of the period. Frequency = 1 / period. Therefore, 1 / 0.2 = 5 Hz. This means that the wave completes 5 cycles in one second. The higher the frequency, the shorter the period of the wave. This relationship is important in understanding the behavior of waves in various applications, such as sound and light. Higher frequency waves have more energy and can carry more information. For example, radio waves with higher frequencies can transmit more data compared to lower frequency waves. Understanding the relationship between frequency and period is crucial in optimizing communication systems for efficient data transmission.