Here's a breakdown:
* Wavelength: This is the distance between two consecutive crests (or troughs) of a wave. It's usually measured in meters (m), but smaller units like nanometers (nm) are often used for electromagnetic radiation.
* Frequency: This is the number of waves that pass a given point in a second. It's measured in Hertz (Hz), which represents one cycle per second.
The relationship between these two quantities is defined by the following equation:
c = λf
where:
* c is the speed of light in a vacuum (approximately 3 x 10⁸ m/s)
* λ is the wavelength
* f is the frequency
In simpler terms:
Imagine you're watching waves in the ocean. If the waves are spaced farther apart (longer wavelength), they hit the shore less frequently (lower frequency). Conversely, if the waves are close together (shorter wavelength), they hit the shore more often (higher frequency).
Examples:
* Radio waves: These have long wavelengths (meters to kilometers) and low frequencies (kHz to MHz).
* Visible light: This has much shorter wavelengths (nanometers) and higher frequencies (THz).
* X-rays: These have even shorter wavelengths (picometers) and even higher frequencies (EHz).
Important Note: This relationship only holds true for electromagnetic waves traveling in a vacuum. In other mediums, the speed of light changes, and consequently, the wavelength also changes. However, the frequency remains constant.
