Frequency:
* Hertz (Hz): This is the unit for frequency, which measures the number of wave cycles per second.
* Kilohertz (kHz): 1 kHz = 1000 Hz
* Megahertz (MHz): 1 MHz = 1,000,000 Hz
* Gigahertz (GHz): 1 GHz = 1,000,000,000 Hz
Wavelength:
* Meter (m): The standard unit for length, often used for longer wavelengths.
* Centimeter (cm): 1 cm = 0.01 m
* Millimeter (mm): 1 mm = 0.001 m
* Micrometer (µm): 1 µm = 0.000001 m
* Nanometer (nm): 1 nm = 0.000000001 m
* Angstrom (Å): 1 Å = 0.1 nm
Energy:
* Electron volt (eV): This is the unit of energy typically used for individual photons.
* Joule (J): This is the standard unit of energy in the International System of Units (SI).
Power:
* Watt (W): This unit measures the rate at which energy is transferred or used.
Other Units:
* Intensity: Measured in Watts per square meter (W/m²)
* Exposure: Measured in Coulombs per kilogram (C/kg)
* Absorbed dose: Measured in Grays (Gy)
Important Note: Frequency, wavelength, and energy are related. The higher the frequency, the shorter the wavelength, and the higher the energy. This relationship is described by the following equation:
E = hν = hc/λ
where:
* E = energy
* h = Planck's constant
* ν = frequency
* c = speed of light
* λ = wavelength
The units used for measuring electromagnetic radiation depend on the specific application and context.
