Dirigeons un faisceau LASER obliquement vers la surface de l'eau contenue dans une cuve aux parois transparentes : la
lumière passe de l'air (milieu 1) à l'eau (milieu 2).
Que se passe-t-il?

If element x has 99 protons how many electrons does it have

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.

Thermal radiation gets its name because