Q. Vertically polarized light passes through two polarizers, the first at 62rm {^circ} to the vertical and the second at 90 rm {^circ} to the vertical.What fraction of the light gets through?
Q. Two 1.1 kg masses are 1.5 m apart (center to center) on a frictionless table. Each has + 9.7 mu C of charge. what is the magnitude of one of the masses.