## the quantum world

$c=\lambda v$

Posts: 52
Joined: Fri Sep 29, 2017 7:03 am

### the quantum world

Do we need to know the EM Spectrum entirely? what would be the best things to know?

StephanieRusnak
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Joined: Fri Sep 29, 2017 7:07 am

### Re: the quantum world

I think it's best to just know that visible light is 400-700 nm

Kamryn Chang 1I
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Joined: Fri Sep 29, 2017 7:04 am

### Re: the quantum world

I don't believe that we need to know the specific wavelengths for each radiation type, but it would be good to have a general idea about the different radiation types, especially which radiation types have longer wavelengths and which ones have shorter wavelengths.

Brandon Fujii 1K
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

### Re: the quantum world

Also, know which types of wavelengths correspond to higher or lower frequency.

i.e. x-rays have short wavelengths and therefore have a higher frequency than radio waves which have long wavelengths.

Angel R Morales Dis1G
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Joined: Sat Jul 22, 2017 3:01 am

### Re: the quantum world

As long as you understand the concepts of wavelengths and frequencies you should be good. ie, larger wavelength, lower frequency, lower energy and vice versa. You should also know the wavelength of the visible lights, red=700nm, violet=400nm

Isaiah Little 1A 14B
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Joined: Fri Sep 29, 2017 7:05 am

### Re: the quantum world

It'd probably be beneficial to know that a photon with a wavelength of 400-700 nm lies in the visible light spectrum, that a photon with a wavelength shorter than 400 nm is typically ultraviolet or higher energy particles (x-rays, gamma rays), and that 800 and above corresponds to infrared or lower-energy photons.

Richard Braun 1I
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Joined: Fri Sep 29, 2017 7:05 am

### Re: the quantum world

Do we also need to know the lyman, balmer, paschen , etc. series?

Naama 1A
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Joined: Fri Sep 29, 2017 7:04 am

### Re: the quantum world

Lyman series emission lines fall in the UV band, Balmer in the visible region, and Paschen lines are infrared.