Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. if 21% of the light passes through, what is the measure of the angle between the transmission axes of the filters?

True or false graphs must include scales that increase by the same amount

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.