HELP HELP HELP To fully describe the ejection of electrons from a metal's surface, scientists
must consider which of the following to be quantized?
A. Both light and matter
B. Neither light nor matter
C. Light only
O D. Matter only

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.