If you look at yourself in a shiny Christmas tree ball with a diameter of 9.0 cm when your face is 30.0 cm away from it, where is your image? Is it real or virtual? Is it upright or inverted?
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If you look at yourself in a shiny Christmas tree
ball with a diameter of 9.0 cm when your face is 30.0
cm away from it, where is your image? Is it real or
virtual? Is it upright or inverted?
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