Giancoli's Physics: Principles with Applications, 7th Edition
23
Light: Geometric Optics
Change chapter23-2: Reflection; Plane Mirrors
23-3: Spherical Mirrors
23-4: Index of Refraction
23-5: Refraction; Snell's Law
23-6: Total Internal Reflection
23-7 and 23-8: Thin Lenses
23-9: Lens Combinations
23-10: Lensmaker's Equation
Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 34
Q
In searching the bottom of a pool at night, a watchman shines a narrow beam of light from his flashlight, 1.3 m above the water level, onto the surface of the water at a point 2.5 m from his foot at the edge of the pool (Fig. 23–57). Where does the spot of light hit the bottom of the 2.1-m-deep pool? Measure from the bottom of the wall beneath his foot.
Figure 23-57.
A
4.4 m
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