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State two different components of the electromagnetic spectrum that have wavelengths longer than the wavelength of red light.

A) Ultraviolet and X-rays
B) Gamma rays and Microwaves
C) Infrared and Radio waves
D) Visible light and Microwaves

1 Answer

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Final answer:

The parts of the electromagnetic spectrum with wavelengths longer than red light are Infrared and Radio waves, making option C correct. Ultraviolet, X-rays, and gamma rays have shorter wavelengths than red light.

Step-by-step explanation:

The components of the electromagnetic spectrum that have wavelengths longer than the wavelength of red light are Infrared and Radio waves. This means the correct option is C) Infrared and Radio waves. The electromagnetic spectrum is typically ordered from shortest wavelength (and highest frequency) to longest wavelength (and lowest frequency), which is gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves, and radio waves. Since red light is at the lower-frequency end of the visible light spectrum, any types of electromagnetic radiation with longer wavelengths than red light would be found after the visible spectrum. Therefore, ultraviolet, X-rays, and gamma rays have shorter wavelengths than red light and thus do not qualify.

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User Santiago Gil
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