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BIO Seeing Polarized Light. Some insect eyes have two types of cells that are sensitive to the plane of polarization of light. In a simple model, one cell type (type \(\mathrm{H}\) ) is sensitive to horizontally polarized light only, and the other cell type (type \(\mathrm{V}\) ) is sensitive to vertically polarized light only. To study the responses of these cells, researchers fix the insect in a normal, upright position so that one eye is illuminated by a light source. Then several experiments are carried out. First, light with a plane of polarization at \(45^{\circ}\) to the horizontal shines on the insect. Which statement is true about the two types of cells? (a) Both types detect this light. (b) Neither type detects this light. (c) Only type \(\mathrm{H}\) detects the light. (d) Only type \(\mathrm{V}\) detects the light.

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Unpolarized light of intensity \(20.0 \mathrm{~W} / \mathrm{cm}^{2}\) is incident on two polarizing filters. The axis of the first filter is at an angle of \(25.0^{\circ}\) counterclockwise from the vertical (viewed in the direction the light is traveling), and the axis of the second filter is at \(62.0^{\circ}\) counterclockwise from the vertical. What is the intensity of the light after it has passed through the second polarizer?

A parallel beam of unpolarized light in air is incident at an angle of \(54.5^{\circ}\) (with respect to the normal) on a plane glass surface. The reflected beam is completely linearly polarized. (a) What is the refractive index of the glass? (b) What is the angle of refraction of the transmitted beam?

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A ray of light is traveling in a glass cube that is totally immersed in water. You find that if the ray is incident on the glass-water interface at an angle to the normal larger than \(48.7^{\circ},\) no light is refracted into the water. What is the refractive index of the glass?

The direction in which it is wobbling is called its polarization. Most light, like that from the Sun, is made up of a whole mix of directions ...

Products tagged with 'Liquid lighting'. Filters. View as Grid List. Sort by ... 1 Quart, Liquid Lightning Pro Drain Opener, Carton of 12. S95793. Picture of ...

Lights and Illumination used in optics and photonics applications is available at Edmund Optics.

Aug 19, 2020 — I'm looking to use my camera (Sony A7RIII) as a webcam, and am looking for an OK ring light to use. My lighting in my apartment isn't the best, and a ring ...

Light Pipe. Light enters a solid pipe made of plastic having an index of refraction of 1.60 . The light travels parallel to the upper part of the pipe (Fig. E33.15). You want to cut the face \(A B\) so that all the light will reflect back into the pipe after it first strikes that face. (a) What is the largest that \(\beta\) can be if the pipe is in air? (b) If the pipe is immersed in water of refractive index 1.33 , what is the largest that \(\beta\) can be?

A beam of light has a wavelength of \(650 \mathrm{nm}\) in vacuum. (a) What is the speed of this light in a liquid whose index of refraction at this wavelength is \(1.47 ?\) (b) What is the wavelength of these waves in the liquid?

ModelDLM-530 Lux meter (Range : From 20 to 200000 Lux ) ModelDLM-531 Lux/ Footcandle Meter (Range : 20 Lux,200 lux, 2000 lux, 20000 Lux; 20fc, 200fc, ...