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The longest wavelength in the electromagnetic spectrum is the

microwaves
gamma ray
radio wave
ultraviolet ray

2 Answers

3 votes

Answer:

radio waves

Step-by-step explanation:

User Roman Kazanovskyi
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The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.
User Jeremy Roman
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