A beam of partially polarized light can be considered to be a mixture of polarized and unpolarized light. Suppose a beam of partially polarized light is sent through a polarizing filter. The polarization direction of the filter can be changed by rotating it. As the filter is rotated through 360 degrees, we observe that the transmitted intensity varies from some minimum value Imin to a maximum value of 9.7 times Imin. What fraction of the intensity of the original beam is associated with polarized light?
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