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March 24, 2017

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a very bright source of red light has much more energy than a dim source of blue light, but the red light has no effect in ejecting electrons from a certain photosensitive surface. why is this so?

  • physics - ,

    you used "bright" and "dim" This means the rate of photon emission, not individual photon energy. Blue photons are individually much more energeticthan red photons.

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