1. in the opposite fgure: identify what is pointed by the arrows
the kind of mirror numben .
2. the kind of the mirror number)
3. the line ab (3)
4. the distance cp (4)
the distance fp (5).
4. the point p (6)

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.