In a 1905 paper that later won him a Nobel Prize, Albert Einstein postulated that the energy of light was proportional to its frequency. The constant of proportionality turned out to be Planck's constant h: Elight=hf. Using your previous results, and the equation given in Part C, find an expression for h in terms of experimentally determinable quantities. Express your answer in terms of the slope m and e.
E = eV. ............................(1)
E = hc/wavelength..............(2)
From 1 & 2 we write,. V = (hc/e)(1/wavelength)
V = hf/e
Now comparing with, V = mf - b
Therefore, m = h/e
Hence, h = me. where, m is slope = h/e
In a 1905 paper that later won him a Nobel Prize, Albert Einstein postulated that the...
To understand the experiment that led to the discovery of the photoelectric effect.In 1887, Heinrich Hertz investigated the phenomenon of light striking a metal surface, causing the ejection of electrons from the metal. The classical theory of electromagnetism predicted that the energy of the electrons ejected should have been proportional to the intensity of the light. However, Hertz observed that the energy of the electrons was independent of the intensity of the light. Furthermore, for low enough frequencies, no electrons...