Figure 7. Photo of the experimental setup: simultaneously recording voltage and reflection. The beam of the laser pointer impinges the surface in an angle of 45°

From

Experimental Investigations of Alkaline Silver-zinc and Copper-zinc Batteries

A. Habekost

World Journal of Chemical Education. 2016, 4(1), 4-12 doi:10.12691/wjce-4-1-2