Chapter 34, Problem 004 The figure shows an overhead view of a corridor with a plane mirror M mounted at one end. A burglar B sneaks along the corridor directly toward the center of the mirror. If d = 3.9 m, how far from the mirror will she be when the security guard S can first see her in the mirror? em Number Units the tolerance is +/-5% lem
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- A laser beam shines along the surface of a block of transparent material (see figure below). Half of the beam goes straight to a detector, while the other half travels through the block and then hits the detector. The time delay between the arrival of the two light beams at the detector is 6.25 ns. What is the index of refraction of this material?1) What is the speed of light in a glass(n=1.5)? 2) A man 1.80 m tall stands in front of a vertical plane mirror. What is the minimum height of the mirror, if he is to see his whole body? Assume his eyes are 10 cm below the top of his head.w9 - 1 Light rays from the Sun, which is at an angle of 31.0° above the western horizon, strike the still surface of a pond. What is the angle of reflection of the rays that leave the pond surface?
- A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 53.0° and 34.0°, respectively. Obtain the speed of light in the material. Number i UnitsA light beam traveling in air with a wavelenght of 600 nm enters a glass block. If the index of refraction, n=1.5, what is th wavelength of the beam in the glass? 300 nm 900 nm 450 nm 600 nm 400 nmComponents of some computers communicate with each other through optical fibers having an index of refraction n = 1.65. What time in nanoseconds is required for a signal to travel 0.17 m through such a fiber? ns
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