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An unpolarized beam of light with intensity 76.7 lx is incident on three ideal polarizing filters....

An unpolarized beam of light with intensity 76.7 lx is incident on three ideal polarizing filters. The polarizing axis of the first filter (filter A) makes an angle of 30 degree with the vertical and the axis of the second filter (filter B) makes an angle of  81 degree with the vertical. The third filter (filter C) is oriented so that its polarizing axis is horizontal.

what is the polarization direction, with respect to the vertical, of the light after it passes through the first filter?

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Answer #1

whenever an unpolarized light passes through any filter, its intensity becomes half irrespective of the polarizing axis of the filter and also the unpolarized light gets polarized after passing through the filter and this polarized light has a polarization direction in the direction of polarizing axis of the filter.

therefore, polarization direction with respect to the vertical, of the light after it passes through the first filter is 30 degree.

Please ask your doubts or queries in the comment section below.

Please kindly upvote if you are satisfied with the solution.

Thank you.

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