A broken light bulb can produce infrared electromagnetic radiation, but you can't read by it.
The shadow of the red bulb will be green, and the shadow of the green light will be red.
Can a lamp with a broken light bulb produce electromagnetic radiation?
and
What happens when you have two colored lamps in a dark room. A red one on the left and a green one on the right, and you place your hand in the center of the 2! Would the shadows on the white wall be (from left to right) red, yellow, green???
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2 answers