To determine the Planck’s constant, in this experiment we use 3-4 different colors light emitting diodes. We observe the stopping potential of each LED and plot it with the frequency or wavelength to calculate the value of Planck’s constant. The quiz is helpful to you […]
Planck’s Constant Experiment Viva Questions: Planck’s Constant using LED Determination of Planck’s constant by using light-emitting diodes (LEDs). APPARATUS: Planck’s constant kit, wires, graph paper, and 3-4 LEDs. FORMULA USED: Planck’s constant is h = eV /ν, where e is an electronic charge, V is […]