Question

List the electromagnetic waves in order from longest to shortest wavelength.

Answer 1

This is what I came up with
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gamma rays (shorter then 10 trillionths of a meter)
X rays (10 billionths -10 trillionths of a meter)
visible light (750 billionths - 400 billionths of a meter)
ultraviolet waves (10 billionths of a meter-400 billionths )
infrared waves (1mm-750 billionths of a meter)
microwaves (1cm-20cm)
Radio waves (longer then 1 mm)
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Answer 2

What is the purpose of this question?

Answer 3

radio wave,micro wave,ir rays,uv light,x rays,gamma ray

Answer 4

where is the physics in this question? These are merely facts that you can find from any good book on Physics.

Answer 5

You listed them backwards @JoStudy , that's shortest to longest.

Since EM waves have higher energy at higher frequencies (frequency is how often something wiggles, if they're wiggling a lot, they've got a lot of energy) and so if they wiggle a lot, it takes less time to complete one wiggle, so their wavelength must be shorter.

Now think of all of these EM waves in your everyday life. What's most dangerous also tends to have the most energy. Gamma and x-rays can cause you to get cancer, pretty powerful stuff, must be wiggling real fast and have short wavelength.

Radiowaves, what about those? Well, since I can touch a radio and not worry, I'd say they must have a long wavelength and small frequency. On the other hand, sticking your hand in a microwave is dangerous, so slightly more radiation. Although technically the damage from a microwave is just a coincidence, since it's at the resonant frequency at which water vibrates. Consider what's more harmful, ultraviolet or infrared? Maybe no one will read this? I don't care, I'm bored and wanted to think about wiggling wavies.

Answer 6

Thanks Kainui! That actually helped me understand them better!

Answer 7

Cool lol. =D