Light Passes Through Three Ideal Polarizing Sheets

question 59

Short Answer

Light passes through three ideal polarizing sheets. Unpolarized light enters the first sheet and the resultant vertically polarized beam continues through the second sheet and third sheet. The second sheet has its transmission axis at 50° with respect to the first sheet, and the third sheet is at 70° with respect to the first sheet.
(a) What percent of the original intensity emerges from filter #1?
(b) What percent of the original intensity emerges from filter #2?
(c) What percent of the original intensity emerges from filter #3?

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Definitions:

Polygraph Tests

A type of examination that measures physiological responses to questions in order to determine the truthfulness of the answers provided.

Heart Rate

The count of heart pulsations within a specific time frame, usually measured in beats per minute (BPM).

Sweating

The release of a saline fluid from the body's sweat glands, typically in response to heat, physical exertion, or stress, as a means of regulating body temperature.

Polygraph Examiners

Professionals trained to conduct lie detector tests to assess the truthfulness of a subject's statements.