Question

while performing an environmental survey, a physicist detects a high level of electromagnetic radiation in a controlled area. how can the physicist determine what kind of electromagnetic radiation is being detected?
measure the wavelength
measure the velocity
measure the charge
measure the mass

Explanation:

Electromagnetic radiation is classified by wavelength. All electromagnetic waves travel at the speed of light in a vacuum, so velocity is constant. Electromagnetic radiation is chargeless and mass - less. Measuring wavelength can identify the type of radiation (e.g., radio waves have long wavelengths, gamma rays have short wavelengths).

Answer:

Measure the wavelength