A student needs a 4-ohm resistor to complete a circuit. Only a large quantity of 1-ohm resistors are available. In order to complete the circuit, the student should connect A two of the 1-ohm resistors in series and two in parallel. B four 1-ohm resistors in parallel. C four 1-ohm resistors in series. D only two 1-ohm resistors in paralle

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?