Two bodies of masses m1 and m2
are connected by a light string going
over a smooth light pulley at the end of an incline. The mass m1
lies on
the incline and m2
hangs vertically. The system is at rest; Find the angle
of incline and the force exerted by the incline on the body of mass m1
.

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?