Final answer:
Devices like Geiger counters, scintillators, and Anger cameras are used to measure and visualize areas of high and low energy distribution, while light meters quantify the intensity of electromagnetic radiation.
Step-by-step explanation:
The device that reveals areas of high and low energy distribution is known as a Geiger counter, a scintillator, an Anger camera or gamma camera, or a light meter. Devices like Geiger counters are commonly used to measure radiation which indicates the presence of high energy particles. Scintillators are instruments that detect and measure ionizing radiation by converting it to light, which is easier to quantify. An Anger camera is a specialized type of gamma camera used in medical imaging to view and analyze concentrations of nuclear activity within a patient's body. These devices use a collimator and detectors to create an image of the radioactive distribution. Finally, light meters operate on the principle of ejecting electrons when light strikes a plate in an evacuated tube; the number of electrons ejected correlates to the light's intensity, revealing the energy distribution.