When light with a frequency 1 547 5 THz illuminates a metal surface, the most energetic photoelectrons have 1 260 10 19 J of kinetic energy When light with a frequency 2 738 8 THz is used instead, the most energetic photoelectrons have 2 480 10 19 J of kinetic energy Using these experimental results, determine the approximate value of Planck 's constant

Question: When light with a frequency 1 = 547.5 THz illuminates a metal surface, the most energetic photoelectrons have 1.260 10-19 J of kinetic energy.

When light with a frequency ƒ1 = 547.5 THz illuminates a metal surface, the most energetic photoelectrons have 1.260 × 10-19 J of kinetic energy. When light with a frequency ƒ2 = 738.8 THz is used instead, the most energetic photoelectrons have 2.480 × 10-19 J of kinetic energy. Using these experimental results, determine the approximate value of Planck's constant?

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