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Title: light in detail
Description: 9th graders and up light (photons abreviations formulas )

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C = Lambda x Niu  
V = niu = frequency sign, unit = s‐1 
C =speed of light is constant = 3x10⁸  units = m/s 
  

= lambda = wavelength = unit = meters 

Wavelength x frequency = 3x10⁸ 
m x s‐1 = m/s
In order of increasing wavelength  
Gamma rays < x‐rays < ultraviolet < visible light< 
infrared < microwaves < radio waves 
shorter wavelength = higher frequency 
longer wavelength = lower frequency 
ROYGBIV colors of visible light  
Red Orange Yellow Green Blue Indigo Violet 
Red has the longest wavelength the lowest 
frequency 
Violet has the shortest wavelength highest 
frequency 

The higher the frequency the more the wave will be 
hitting a certain point more frequent 
 
 
Light is a form of energy light hits a metal and 
electrons of metal are emitted or released 
Some metals need higher frequency lights to emit 
electrons it depends on the type of the metal used  
 
 
 
 
 
 
 

h = 6
...
s x s‐1 

E = h 
Title: light in detail
Description: 9th graders and up light (photons abreviations formulas )