In 1-2 complete sentences, summarize how the frequency of a wave is measured. Use the "RAP" method to answer this short-answer question:

Restate the question.
Answer the question.
Prove your answer citing textual evidence from the course.
Don't forget to use complete sentences and proofread your answer.

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?