Peak values from only measured data Peak values using estimate of peak location

Question

Peak values from only measured data Peak values using estimate of peak location 5.37+0.5 ev 5.28±0.5 eV 5.03±0.5 e 5. 1310.5 e 1000 5.0310.5 e 5.14±0.5 e 800 curent PicoAmps 600 4.33+0.5 e 4.2410.5 ev 400 200 10 15 20 Accelerating Potential 25 30 (Volis) Figure 3. Plot of current through the anode collector as a function of Accelerating Potential The dips and their corresponding peaks are due to the absorption of energy by the Hg atoms The Hg atoms absorb energy only in discrete amounts, otherwise a smooth curve representing the fraction of electrons that did not collide would result. The succesion of dips and peaks irn regular intervals correspond to electrons with enough energy to excite more than one Hg atom. The distance between peaks as calculated by the method described in the analysis are labeled in black (on top), and the distance between peaks as determined by the maximum current actualy measured are represented in maroon (on bottom. These distances correspond to the excitation energy in electron volt:s

Explanation / Answer

The experiment involved sending a beam of electrons through mercury vapor and observing the loss of kinetic energy when an electron strikes a mercury atom and excites it from its lowest energy state to a higher one.

Below link can help you to understand why this is so:https://www.physics.rutgers.edu/grad/506/franck-hertz.pdf

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