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Which of the following parts of the electromagnetic spectrum have longer wavelengths than those witnessed in the visible spectrum?

AInfrared B. Cosmic waves C. X-rays D. Gamma rays

Verified Answer :

AL2006

From that list of choices, infrared radiation is the only one with wavelengths
longer than the wavelengths of visible light.  Those of X-rays, and gamma rays
are shorter than visible wavelengths.  Cosmic rays are high energy subatomic
particles, not electromagnetic waves.

the aswer is A- infrared, hope it helps

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