1. a person with normal vision (near point 28cm) is standing in front of a plane mirror. what is the closest distance to the mirror the person can stand and still see himself in focus?
a: 14cm
b: 28cm
c: 56cm
2. briefly explain your reasoning.

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell