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  1. G

    Quick question about light waves

    They would return to the values they had before entering the glass, as you suspected. EDIT: Looks like Claude beat me to it
  2. G

    Does light exerts force?

    I think what you are talking about is called a radiometer. What causes it to spin is not the change in momentum from light "particles" hitting the paddles. In fact, the black side of the paddles absorbs much of the incoming light, causing the black side to heat up, while the white side stays...
  3. G

    Does light exerts force?

    I don't think that light produces any force directly from its motion. The energy from light can cause a force to be generated, however. What exactly is your project?