science

A photocell shows photoelectric effect when green light shines on it. Which of the following is correct if a green light is replaced by a blue light?

Electron emission would get stopped.

Electrons are emitted with more velocity.

Electrons are emitted with less velocity.

Electrons are emitted with same velocity.

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  1. a blue photon is higher frequency, and therefore higher energy, than green.
    a green photon has enough energy to shake an electron use
    any extra energy makes the electron go faster
    so
    more velocity

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    Damon
  2. Thank you

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