Multiple Choice
Which of the following best describes the difference between visible light and X-rays in the electromagnetic spectrum?
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9. Quantum Mechanics
Electromagnetic Spectrum
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Which part of the electromagnetic spectrum has the longest wavelengths?
A
Ultraviolet
B
Radio waves
C
Gamma rays
D
Infrared
Verified step by step guidance1
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.
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