Three ideal linear polarizers are arranged in a row, facing a light source. Light from the source passes in succession through the polarizers. I,, I, I,, and I, are the intensities of light before the first polarizer, between the first and second, between the second and third, and after the third polarizer respectively. The incident intensity is, I, = 800.0W / m² and the incident light is unpolarized. The first polarizer is aligned to pass light that is vertically polarized, the second polarizer is rotated relative to the first and relative to the vertical by 0, = 65.0° , the third polarizer is rotated relative to the vertical by an unknown angle, O, . а. What is the intensity of the light after the first polarizer, I, ? b. What is the intensity of the light after the second polarizer, I, ? If the intensity of light after the third polarizer is I, = 58.68 W / m² , what are the two с. possible angles of the third polarizer from the vertical, 0, ? (hint: there are two angles not trivially related by rotating the polarizer by 180° )
Three ideal linear polarizers are arranged in a row, facing a light source. Light from the source passes in succession through the polarizers. I,, I, I,, and I, are the intensities of light before the first polarizer, between the first and second, between the second and third, and after the third polarizer respectively. The incident intensity is, I, = 800.0W / m² and the incident light is unpolarized. The first polarizer is aligned to pass light that is vertically polarized, the second polarizer is rotated relative to the first and relative to the vertical by 0, = 65.0° , the third polarizer is rotated relative to the vertical by an unknown angle, O, . а. What is the intensity of the light after the first polarizer, I, ? b. What is the intensity of the light after the second polarizer, I, ? If the intensity of light after the third polarizer is I, = 58.68 W / m² , what are the two с. possible angles of the third polarizer from the vertical, 0, ? (hint: there are two angles not trivially related by rotating the polarizer by 180° )
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Transcribed Image Text:Three ideal linear polarizers are arranged in a row, facing a light source. Light from the
source passes in succession through the polarizers. I,, I,, I,, and I, are the intensities of
light before the first polarizer, between the first and second, between the second and third, and
after the third polarizer respectively. The incident intensity is, I, = 800.0W /m² and the
incident light is unpolarized. The first polarizer is aligned to pass light that is vertically
polarized, the second polarizer is rotated relative to the first and relative to the vertical by
0, = 65.0° , the third polarizer is rotated relative to the vertical by an unknown angle, O, .
What is the intensity of the light after the first polarizer, I, ?
а.
b. What is the intensity of the light after the second polarizer, I, ?
If the intensity of light after the third polarizer is I, = 58.68 W / m² ,what are the two
С.
possible angles of the third polarizer from the vertical, O, ? (hint: there are two angles not
trivially related by rotating the polarizer by 180° )
2.
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