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 39
Q
- What is the minimum index of refraction for a glass or plastic prism to be used in binoculars (Fig. 23–28) so that total internal reflection occurs at ?
- Will binoculars work if their prisms (assume n = 1.58) are immersed in water?
- What minimum is needed if the prisms are immersed in water?
Figure 23-28 Total internal reflection of light by prisms in binoculars.
A
- 1.41
- no, these binoculars will not work in water
- 1.88
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