Mirrors and lens pdf

Choose your answers to the questions and click next to see the next set of questions. Mirrors and lenses test multiple choice flashcards quizlet. Instead of drawing the 3rd ray through the center of curvature, draw the third ray through the center of the lens, it will pass straight through, no refraction this is the middle ray in the diagram below. Mirrors and lenses both have the ability to reflect or refract light. Since the light refracts through the lens, and doesnt bounce off, like a mirror, when drawing ray diagrams, there is one difference. Let us find out what are mirror and lenses, phenomenas associated with them, applications, convex lens, concave lens, convex mirror, concave mirror in the form of mcqs. Percentages represent averages based on available lens material. Each face of the lens is part of a sphere and can be convex, concave, or flat. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Sign convention for spherical mirrors and thin lenses. The pupil is a little hole which allows light to pass into the eye. A lens is made of transparent material with a refractive index larger than air.

As of 2010, mirrors and lenses are so prevalent that most people use them every day, regardless of whether or not they consciously perceive the use. High efficiency polarized filter 18% light transmission. Geometrical optics mirror and lenses outline reflection plane mirrors concaveconvex mirrors refraction lenses dispersion. We take a brief look at some ways in which mirrors and lenses are utilised in technology. Key ideas are summarized in tables and rules of thumb. Figure 181 the reflected rays that enter the eye appear to origi nate at a point behind the mirror. Start studying mirrors and lenses test multiple choice. The paths of light rays incident upon the surface of a mirror may be determined by application of the laws of reflection. Just as for mirrors we use three rays to find the image from a lens. Introduction to mirrors and lenses when the surface is smooth, such as the surface of glass or a mirror, then it can be easily demonstrated how reflected rays always obey the law of reflection as illustrated below. High efficiency polarized filter 10% light transmission. Ppt mirrors and lenses powerpoint presentation free to. Or should it be a plus sign for mirrors and minus for lenses.

Pdf optical images due to lenses and mirrors researchgate. A greatly simplified view of the human eye is shown below. The object distance is the distance from the object to the mirror or lens. An optical system mirrors or lenses can produce an image of the object by redirecting the light. Should that not be a minus sign on the left hand side. This property has put mirrors and lenses in use for centuries. Use the lensmakers equation to determine the focal length of a thin lens.