Fig. 34-15 Rainbows are formed by refraction, reflection, and dispersion in water drops. (a) Primary rainbow. (b) Secondary rainbow. red violet © 2003.

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Fig Rainbows are formed by refraction, reflection, and dispersion in water drops. (a) Primary rainbow. (b) Secondary rainbow. red violet © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

Fig. 44 The rainbow mechanism again. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

Fig Polarization (a) Transverse wave on a string, polarized in the y-direction. (b) Wave polarized in the z-direction. (c) Barrier with vertical slot passes the y- and blocks the z-polarized components. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

Fig Polaroid filter © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

Fig Unpolarized light is incident on a polarizing filter. Law of Malus: I = I max cos 2  © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

Fig Reflected light can be polarized. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

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