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Chapter 33: Q4P (page 1001)
About how far apart must you hold your hands for them to be separated by (the distance light travels in)?
One nano light second is equal to .
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Figure 33-32 shows four long horizontal layers A–D of different materials, with air above and below them. The index of refraction of each material is given. Rays of light are sent into the left end of each layer as shown. In which layer is there the possibility of totally trapping the light in that layer so that, after many reflections, all the light reaches the right end of the layer?
In Fig. 33-41, a beam of light, with intensityand polarization parallel to a y-axis, is sent into a system of two polarizing sheets with polarizing directions at angles of and to the y axis. What is the intensity of the light transmitted by the two-sheet system?
The magnetic component of an electromagnetic wave in vacuum has an amplitude of and an angular wave number of What are (a) the frequency of the wave, (b) the rms value of the electric component, and(c) the intensity of the light?
In a region of space where gravitational forces can be neglected, a sphere is accelerated by a uniform light beam ofintensity.The sphere is totally absorbing and has a radius ofand a uniform density of. What is the magnitude of the sphere’s acceleration due to the light?
Start from Eq. 33-11 and 33-17 and show that ,and ,the electric and magnetic field components of a plane traveling electromagnetic wave, must satisfy the wave equations
and
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