Chapter 25: Q23PE (page 930)
At what minimum angle will you get total internal reflection of light traveling in water and reflected from ice?
Short Answer
When light travels through water and is reflected by ice, the critical angle is .
Chapter 25: Q23PE (page 930)
At what minimum angle will you get total internal reflection of light traveling in water and reflected from ice?
When light travels through water and is reflected by ice, the critical angle is .
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Get started for freeRay tracing for a flat mirror shows that the image is located adistance behind the mirror equal to the distance of the object from themirror. This is stated,\({d_i} = - {d_o}\) since this is a negative image distance(it is a virtual image).
(a) What is the focal length of a flat mirror?
(b) What is its power?
Light traveling from water to a gemstone strikes the surface at an angle of 80.0º and has an angle of refraction of 15.2º.
(a) What is the speed of light in the gemstone?
(b) What is unreasonable about this result?
(c) Which assumptions are unreasonable or inconsistent?
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Figure 25.56A light ray enters the end of a fibre, the surface of which is perpendicular to its sides. Examine the conditions under which it may be totally internally reflected.
Is it necessary to project a real image onto a screen for it to exist?
If you wish to see your entire body in a flat mirror (from head to toe), how tall should the mirror be? Does its size depend upon your distance away from the mirror? Provide a sketch.
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