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JOUR 250 Lecture Notes - Lecture 14: Cyan, Cmyk Color Model, Primary Color

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21 Feb 2018

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Ball State University

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The higher the frequency, the more refraction (or bending). Thus, white light is separated into the color spectrum seen coming out the other end. White is detected when all colors are reflected from an object. Black is detected when all of the colors are absorbed into an object. printed colors: subtractive. Printing presses can reproduce thousands or millions of colors in newspapers, magazines, books and other paper-based publications. Reproducing full-color images is called "four color process" or "process printing. " Different values of four colors cyan, magenta, yellow and black (cmyk) are used to produce every color in the visual spectrum. Cyan, magenta and yellow are secondary subtractive colors. When two of them overlap on paper, a primary color is created. Offset presses produce full color by separating the cyan, magenta, yellow and black color values onto plates that transfer ink to paper. projected colors: additive. Each color of the spectrum has a specific frequency.

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Related Questions

A narrow beam of white light enters a prism made of crown glass at a ${45.0}^{\circ}$ incident angle, as shown in Figure 25.57. At what angles, $θ_{R}$ and $θ_{V}$ , do the red (660 nm) and violet (410 nm) components of the light emerge from the prism?

<b>Figure 25.57</b> This prism will disperse the white light into a rainbow of colors. The incident angle is 45.0 degrees, and the angles at which the red and violet light emerge are theta_R and theta_V. — Figure 25.57 This prism will disperse the white light into a rainbow of colors. The incident angle is 45.0 degrees, and the angles at which the red and violet light emerge are theta_R and theta_V.

1. When white light shines on a thin film of soap, light is reflected

a) from the back surface of the film only.

b) both the front and back surfaces of the film.

c) the front surface of the film only.

2. This results in

a) the refraction of the reflected light rays.

b) interference between the reflected light rays.

c) a Doppler shift in the frequency of the reflected light.

3. Colors are seen in the soap film because certain wavelengths of the reflected light

a) are refracted at different angles.

b) canceled due to destructive interference.

c) absorbed by pigments in the soap.

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