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S4-5)PS4.A: Wave PropertiesThe wavelength and frequency of a wave are related to one another by the speed of travel of the wave, which depends on the type of wave and the medium. through wh. Information can be digitized (e.g., a picture stored as the values of an array of pixels); in this form, it can be stored.
Duffy_EP_2012_ch23. Light can be described by several different models. In Chapters 23 and 24, we will make use of a relatively simple model of light known as the ray model. The ray model will help us to understand how light interacts with mirrors and lenses, and help us understand how the reflection of light can produce beautiful photographs ...
o be refracted.2.1. .1. LAWS OF REFRACTION First law: The incident ray, the refracted ray and the normal at the of point inciden. e lie in the same plane. This plane is c. lled plane of incidence.Second law: The ratio of the sine of the angle of incidence to the sine of the angle of refraction for any two. sinθ2 =.
observer, and the second image is light from the left side of the fish refracted toward the observer. Q25.4 An echo is an example of the reflection of sound. Hearing the noise of a distant highway on a cold morning, when you cannot hear it after the ground warms up, is an example of acoustical refraction.
Draw a ray diagram; the image is where the rays intersect. Apply the mirror and magnification equations. Sign conventions: if the object, image, or focal point is on the reflective side of the mirror, its distance is positive, and negative otherwise. Magnification is positive if image is upright, negative otherwise.
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In order to calculate the focal point we need to look at the light rays coming in. Specifically, the top ray that strikes point B on the mirror. The black dashed line is showing the normal line, or perpendicular line, of the mirror at point B. Remember that C is the center of the curvature.
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1.S: The Nature of Light (Summary) Thumbnail: An EM wave, such as light, is a transverse wave. The electric E→ E and magnetic B→ B fields are perpendicular to the direction of propagation. The direction of polarization of the wave is the direction of the electric field. In this chapter, we study the basic properties of light.
