Join thousands of students who trust us to help them ace their exams!
Multiple Choice
Which part of the electromagnetic spectrum has the longest wavelengths?
A
Ultraviolet
B
Radio waves
C
Gamma rays
D
Infrared
0 Comments
Verified step by step guidance
1
Recall that the electromagnetic spectrum is arranged by wavelength from longest to shortest.
Identify the general order of electromagnetic waves by wavelength: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
Understand that radio waves have the longest wavelengths, often ranging from millimeters to kilometers.
Recognize that gamma rays have the shortest wavelengths, typically less than a nanometer.
Conclude that among the given options, radio waves have the longest wavelengths in the electromagnetic spectrum.