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Electromagnetic Spectrum

In colloquial usage, there are 7 different types of electromagnetic radiation. Can you name them all?
Quiz by cuotak
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Last updated: March 19, 2020
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First submittedJuly 10, 2013
Times taken57,182
Average score71.4%
Rating4.93
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Typical wavelength
Radiation
103 m
Radio
10-2 m
Microwave
10-5 m
Infrared
5 * 10-7 m
Visible
10-8 m
Ultraviolet
10-10 m
X-ray
10-12 m
Gamma
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47 Comments
sambadojazz
+11
Level 55
Dec 1, 2015
Microwave is a subset of Radio and should not be listed separately. My guess is that Wikipedia was used as the source for this quiz. You can see if you look closely at the table that microwaves are not a separate type.
Quizmaster
+89
Level ∞
Apr 6, 2017
It's complicated. These are the terms that are most commonly learned and taught, so I think the quiz should stay as is. And since its an arbitrary definition, its not like any one way is "correct".
peardestroyer
+8
Level 63
Mar 19, 2020
I agree.
cshtthomas
+15
Level 60
Apr 7, 2017
As of wavelength and frequency, microwave is in no way categorized in radio wave
ChaosQuizzer
+1
Level 35
Apr 26, 2025
Radio waves just have to have a frequency below 300GHz, which microwaves fit in (your typical household microwave will operate at 2.4GHz, for example). The reason why it's complicated is, while they do overlap, they are taught separately in schools as they typically have different purposes (a typical radio will broadcast in the KHz or MHz ranges, for example).
sillie
+7
Level 76
Apr 8, 2017
UV-A, UV-B and UV-C are also separated at times.
SpartanLlama
+3
Level 74
Jun 3, 2020
Oh, I'm used to seeing them as separate
cshtthomas
+1
Level 60
Apr 7, 2017
Great, 43 seconds to go!
Creo
+1
Level 44
Sep 8, 2019
44
Charliezard
+1
Level 66
Oct 29, 2021
46
Jarl5
+7
Level 69
May 29, 2017
Visible? Check. Invisible...?
Jarl5
+4
Level 69
May 29, 2017
jk i got 7/7 in 20 seconds
CardinalV
+10
Level 62
Jun 3, 2019
No one asked you to give your opinion on his statement.
Potterhead67
+3
Level 41
Apr 24, 2025
it's the same person...
vermiciousknid
+1
Level 90
Jun 6, 2025
I reckon CardinalV was replying to another now-deleted comment by a different user in between Jarl5's comments, something negative/dismissive like "no one asked".
HappiestWhale
+17
Level 79
Sep 5, 2019
No one asked me to tell everyone I have a bladder infection either yet here we are.
DonTheLamplighter
+7
Level 86
Jun 1, 2020
My doctor asked me if I smoke. I told him, "Only when I'm on fire."
AlmostAGenius
+1
Level 85
Sep 17, 2022
Ooh… Get burned!
ander217
+4
Level 75
Sep 5, 2017
Only scored two and I owe the movie, "The Effect of Gamma Rays on Man-in-the-Moon Marigolds" for one of those.
diotech
+6
Level 45
Sep 5, 2017
Would appreciate "micro" being accepted for microwave. All the others could have wave after them, too.
wtstoudt
+4
Level 81
Sep 5, 2017
Infrared tripped me. Forgot the first r.
nightmare
+5
Level 67
Sep 5, 2017
The EM Spectrum Song!

https://www.youtube.com/watch?v=bjOGNVH3D4Y

DazzaBrownsword
+2
Level 69
Sep 7, 2022
I don’t know how this song popped into my mind after so many years, but gladly it did! The power of music, eh?
pkerr116
+1
Level 72
Sep 5, 2017
I guess 4 points is not possible. Missed one & got only 3/5.
LukeMontgomery
+3
Level 66
Sep 6, 2017
Randy

Mice

In

Liverpool/Vancouver (Light/Visible)

Use

X-ray

Guns

Greenland
+5
Level 47
Nov 24, 2017
I'm not going to either of those places again then
BrennoAU
+2
Level 42
Jun 2, 2020
Not sure how I feel about your word for X-ray being X-ray
smoceany
+3
Level 51
Jun 2, 2021
name a better x word before gun
Ferbin
+1
Level 78
May 19, 2025
Xylophone, of course.
Laurence
+7
Level 40
Jun 1, 2020
Anyone else used the 'Electromagentic Spectrum' song to help them get the easy full marks?
McKenzieFam
+1
Level 68
Jun 2, 2020
100%!
Sifhraven
+2
Level 73
Jun 2, 2020
Micro and radio are least guessed? Interesting, those were the first I tried.
SpartanLlama
+1
Level 74
Jun 3, 2020
EZ
samcutler
+2
Level 74
Jun 5, 2020
Allow "optical" for visible?
Fresco3
+5
Level 69
Nov 29, 2020
Radiowaves, Microwaves, Infra-red Radi-ation! Visible liiight, ultra-violet! X-rayyyss, gamma rayyys!

Never forgotten that stupid song from Physics

AlexW2210
+5
Level 66
Sep 5, 2022
Randy Men Inject Viagra Until Xtreme Growth!
ChallengeMaster
+2
Level 27
Sep 7, 2022
Easiest ways to get 5 points! And I subconsciously did them in order
AlexThirkell
+2
Level 74
Sep 7, 2022
Well done, here's a biscuit: 🍪
powderpuff
+1
Level 46
Jan 3, 2023
Easy, couldn't get them in order though.
SocialStudyNerd
+2
Level 45
Feb 22, 2023
Real

Mice

Invent

Very

Unique

X-Box

Games

My little trick for remembering :)

CA1EBYT6
+7
Level 49
Oct 9, 2024
my trick for remembering:

radio

microwave

infrared

visible

ultraviolet

xray

gamma ray

hope this helps :)

Potterhead67
+1
Level 41
Apr 24, 2025
i don't even use that. why do i need to know them in order?
Unobtainium
+1
Level 48
Apr 27, 2025
Because they are in order of increasing wavelength and energy.
CityAnnihilator8
+1
Level 54
Apr 24, 2025
12 seconds ez ez. you all suck L
emekadude
+3
Level 32
Apr 26, 2025
cool
Zeter
+1
Level 45
Apr 25, 2025
Gamma rays are not considered distinct based on wavelength - xrays of lower wavelength than gamma rays can be produced. Gamma rays must specifically originate from nuclear decay.
NateDaBoss
+1
Level 59
Apr 27, 2025
Think back to high school physics y'all
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