Multiple Choice
Which statement is true about the energy of electromagnetic radiation?
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9. Quantum Mechanics
Electromagnetic Spectrum
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Which of the following types of radiation has the lowest frequency?
A
Infrared radiation
B
Radio waves
C
Gamma rays
D
Ultraviolet light
Verified step by step guidance1
Recall the electromagnetic spectrum, which organizes different types of radiation by their frequency and wavelength.
Understand that frequency (\( f \)) and wavelength (\( \lambda \)) are inversely related by the equation:
\[ f = \frac{c}{\lambda} \]
where \( c \) is the speed of light.
Identify the general order of electromagnetic radiation from lowest to highest frequency: radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
Compare the given options: radio waves, infrared radiation, ultraviolet light, and gamma rays, and recognize that radio waves have the longest wavelength and thus the lowest frequency.
Conclude that among the listed types, radio waves have the lowest frequency based on their position in the electromagnetic spectrum.
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