Part A What is the work function of the cathode? Express your answer using two significant figures. Constants In a photoelectric-effect experiment, the maximum kinetic energy of electrons is 3.3 eV . When the wavelength of the light is increased by 50%, the maximum energy decreases to 1.5 eV __ Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B What is the initial wavelength? Express your answer using two significant figures. A. nm Submit Request Answer
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