If a red filter was placed between the lens and the screen, what do you see on the screen?
URGENT! There is a ray blue light, followed by a prism in the red filter, then the white screen. In addition, if there is a ray of white light followed by the prism, then the red filter, then the white screen. thank you very much for your help! and, if possible, could you explain why this happens ... thank you
for white light, you will see all the colors of the spectrum except red and blue light, you see the color blue
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