White light with frequencies ranging from to is incident, Physics

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White light with frequencies ranging from to is incident

White light, with frequencies ranging from to , is incident on a potassium surface. The work function of potassium is 2.24 .

1. Find the maximum kinetic energy of electrons ejected from this surface.

2. Find the range of frequencies for which no electrons are ejected.

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Physics: White light with frequencies ranging from to is incident

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Physics: White light with frequencies ranging from to is incident

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