Electromagnetic waves are what transfer electromagnetic radiation through space, which is involved in a number of applications such as microwaves, radio waves, gamma rays, infrared, x-rays light and ultraviolet. As you can see,...
Questions: 22 | Attempts: 2272 | Last updated: Jan 3, 2019
Select the electromagnetic wave with the longest wavelengths
In these questions, you will use the Blackbody Spectrum Simulation to investigate how the spectrum of electromagnetic radiation emitted by objects is affected by the object's temperature. In this simulation, you can...
Questions: 10 | Attempts: 1288 | Last updated: Jan 20, 2021
The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star, we can tell something about its average surface temperature. If we observe a star's spectrum and find that the peak power occurs at the border between red and infrared light, what is the approximate surface temperature of the star? (in degrees C)
In this quiz, we’ll be looking at the proper methods for the protection of people from harmful effects of exposure to ionizing radiation. What do you know about these safety protocols? Let’s find out right now!
Questions: 27 | Attempts: 509 | Last updated: Dec 5, 2017
Which of the following is the unit of absorbed radiation dose