rent money is only visible under xray glasses.

radio,micro,infrared,ultravlot,xray,gamma ray)

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red orange yellow green blue indidgo violet.

roygbiv 

richard of youk gave battle in vain.

all make white light.

under a lens the frequency diffuse due to respentive spectrum.

under a red color it absorb all the other colors and reflect only red

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// dont get confused with  electromaentic spectrum 

rent money is only visible under xray glasses

radio waves, microwves,infared rays, visible light ,ultraviolet xray gamma rays

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To proof that light is made of these colors,you will need to shoot some beam

Under a lense and watch it break into colors on the other side.