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What would be energy of the photons comprising beam of light

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Light from a laser hits the surface of cesium. With a minimum photon energy of 2.14eV being required to remove photons. When the surface of cesium is illuminated with this light photoelectrons are emitted with a max kinetic energy of 0.76eV. Assuming that the Planck constant is 4.14x10^-15 eV Hz-1.

What would be the energy of the photons comprising the beam of light from the laser?

What color would the laser be?

Reference no: EM13957106

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