A low pressure sodium vapor lamp whose wavelength is 5.89x10^-7 passes through double slits that are 6.7x10^-4m apart and produces an interference pattern whose fringes are 3.2 x 10^-3m apart on the screen. what is the distance to the screen? ​

What is magnetic flux? explain faraday's law of induction.

A( developed during the process of technology design

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.