Question

How do you calculate Planck's constant from a graph?

Answer 1

To calculate Planck's constant, plot the energy of the photon on the y-axis in units of Joules and frequency of the wave on the x-axis in units of Hertz ( sec−1 ). The calculate the slope y2 - y1 / x2 - x1 which should equal Planck's constant at 6.626 x 10−34 Joule seconds (Js)