dakmil6222 dakmil6222
  • 20-02-2024
  • Physics
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When two ultraviolet beams of wavelengths λ1 = 80 nm and λ = 110 nm fall on a lead surface, they produce photoelectrons with maximum energies 11.390 eV and 7.154 eV, respectively.

Estimate the numerical value of the Planck constant.

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