The EM wave that has the lowest frequency in this list is
a. ultraviolet
b. infrared
c. x rays
d. microwave
e. gamma rays
D
You might also like to view...
What is the intensity of the electromagnetic radiation at a distance of 2.00 m from a 100 W isotropic source?
a. 
b. 
c. 
d. 
e. 
A container is filled with a mixture of helium and oxygen gases. A thermometer in the container indicates that the temperature is 22°C. Which gas molecules have the greater average kinetic energy?
A) It is the same for both because the temperatures are the same. B) The oxygen molecules do because they are diatomic. C) The oxygen molecules do because they are more massive. D) The helium molecules do because they are less massive. E) The helium molecules do because they are monatomic.
The James Webb Space Telescope is designed primarily to observe
A. light of all wavelengths B. gamma rays C. X-rays D. infrared light E. visible light
What evidence do astronomers have that the Universe is expanding?
A. There is a measurable redshift in the spectral lines of distant galaxies. B. Galaxies disappear when they pass the cosmic horizon. C. The disks of galaxies are getting smaller over time. D. Nearby clusters of galaxies are smaller than more distant ones. E. Distant galaxies are dispersing, pulled apart by the expansion of space.