In which unit is the wavelength of an electromagnetic wave commonly measured?
A. J
B. nm
C. s–1
D. kg
All most positive it is b but I just wanted to make sure.
That is correct for those mentioned.
You are correct! The wavelength of an electromagnetic wave is commonly measured in nanometers (nm). To determine this, it helps to understand the basics of the electromagnetic spectrum and the units used to measure wavelengths.
The electromagnetic spectrum is a range of all possible frequencies of electromagnetic radiation, which includes visible light, radio waves, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays. Each type of electromagnetic wave corresponds to a specific wavelength or frequency.
In the case of visible light, the different colors that we see correspond to different wavelengths. For instance, red light has a longer wavelength compared to blue light. To measure the wavelengths of electromagnetic waves, scientists often use the unit of nanometers (nm), which is equal to one billionth of a meter. This unit is convenient for measuring the wavelengths of light because it falls within a reasonable range for describing the size of molecules and the order of magnitude of visible light wavelengths.
Therefore, option B, "nm," is the correct unit for measuring the wavelength of an electromagnetic wave.