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B. Refractive index of air depends on temperature and pressure. Within few metres of height difference near the ground, air pressure remain almost uniform but air temperature changes by appreciable amount Suppose under such conditions, the refractive index u depends only on the temperature, and this dependence has the form a u =1+- T. Here a is a constant, value of which at normal pressure is 1/6 K. The sun heats up the air above a road and simultaneous random small movements of air make the dry asphalt appear like a puddle. This phenomenon is called mirage. Suppose that in a thin layer immediately above the road, temperature of air is AT= 20 K more than temperature To = 300 K of the air elsewhere. From what minimum horizonta distance x an observer of height h = 1.75 m can see a puddle on the roac

B. Refractive index of air depends on temperature and pressure. Within few metres of height difference near the ground, air pressure remain almost uniform but air temperature changes by appreciable amount Suppose under such conditions, the refractive index u depends only on the temperature, and this dependence has the form a u =1+- T. Here a is a constant, value of which at normal pressure is 1/6 K. The sun heats up the air above a road and simultaneous random small movements of air make the dry asphalt appear like a puddle. This phenomenon is called mirage. Suppose that in a thin layer immediately above the road, temperature of air is AT= 20 K more than temperature To = 300 K of the air elsewhere. From what minimum horizonta distance x an observer of height h = 1.75 m can see a puddle on the roac

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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13. Refractive index of air depends on temperature and pressure. Within few metres of height difference near the ground, air pressure remains few metres of height difference near the ground, air pressure remain almost uniform but air temperature changes by appreciable amount Suppose under such conditions, the refractive index u depends only the temperature, and this dependence has the form on a H=1+ Here a is a constant, value of which at normal pressure is 1/6 K. The sun heats up the air above a road and simultaneous random small movements of air make the dry asphalt appear like a puddle. This phenomenon is called mirage. Suppose that in a thin layer immediately above the road, temperature of air is AT= 20 K more than temperature To = 300 K of the air elsewhere. From what nminimum horizontal distance x an observer of height h = 1.75 m can see a puddle on the road. Also plot a rough graph for relation x(AT). ToCTotAT) -210m 20AT 14. A steel wire is coaxially embedded in a glass tube, external diameter of olass
Transcribed Image Text:13. Refractive index of air depends on temperature and pressure. Within few metres of height difference near the ground, air pressure remains few metres of height difference near the ground, air pressure remain almost uniform but air temperature changes by appreciable amount Suppose under such conditions, the refractive index u depends only the temperature, and this dependence has the form on a H=1+ Here a is a constant, value of which at normal pressure is 1/6 K. The sun heats up the air above a road and simultaneous random small movements of air make the dry asphalt appear like a puddle. This phenomenon is called mirage. Suppose that in a thin layer immediately above the road, temperature of air is AT= 20 K more than temperature To = 300 K of the air elsewhere. From what nminimum horizontal distance x an observer of height h = 1.75 m can see a puddle on the road. Also plot a rough graph for relation x(AT). ToCTotAT) -210m 20AT 14. A steel wire is coaxially embedded in a glass tube, external diameter of olass
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