Physics

Physics

Problem

Calculate the period of an electromagnetic wave whose frequency is 2.0 MHz2.0\,\text{MHz}. Give your answer in microseconds.
Intuitive explanation

The period and frequency of a wave are reciprocals—they measure the same rhythm from opposite angles. Since frequency tells you how many cycles happen per second, the period is simply how long one complete cycle takes. Use the relationship T=1fT = \frac{1}{f} and watch your units carefully: converting from megahertz to hertz first will make the final conversion to microseconds straightforward.

Intuitive explanation

The period and frequency of a wave are reciprocals—they measure the same rhythm from opposite angles. Since frequency tells you how many cycles happen per second, the period is simply how long one complete cycle takes. Use the relationship T=1fT = \frac{1}{f} and watch your units carefully: converting from megahertz to hertz first will make the final conversion to microseconds straightforward.

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