Chapter 32: Problem 6
What is the magnification for a plane mirror? a) +1 b) -1 c) greater than +1 d) not defined for a plane mirror
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For specular reflection of a light ray, the angle of incidence a) must be equal to the angle of reflection. b) is always less than the angle of reflection. c) is always greater than the angle of reflection. d) is equal to \(90^{\circ}\) - the angle of reflection. e) may be greater than, less than, or equal to the angle of reflection.
A helium-neon laser produces light of wavelength \(\lambda_{\mathrm{vac}}=632.8 \mathrm{nm}\) in vacuum. If this light passes into water, with index of refraction \(n=1.333\), what will each of the following characteristics be? a) speed b) frequency c) wavelength d) color
How deep does a point in the middle of a 3.00 -m-deep pool appear to be to a person standing beside the pool at a position \(2.00 \mathrm{~m}\) horizontally from the point? Take the index of refraction for the liquid in the pool to be 1.30 and that for air to be \(1.00 .\)
If you look at an object at the bottom of a pool, the pool looks less deep than it actually is. a) From what you have learned, calculate how deep a pool seems to be if it is actually 4 feet deep and you look directly down on it. The index of refraction of water is \(1.33 .\) b) Would the pool look more or less deep than it actually is if you looked at it from an angle other than vertical? Answer this qualitatively, without using an equation.
Many optical fibers have minimum specified bending radii. Why?
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