Chapter 33: Q6P (page 1001)
What is the wavelength of the electromagnetic wave emitted by the oscillator–antenna system of the following Fig. 33-3 ifand?
Short Answer
The wavelength of the electromagnetic wave emitted by the oscillator is .
Chapter 33: Q6P (page 1001)
What is the wavelength of the electromagnetic wave emitted by the oscillator–antenna system of the following Fig. 33-3 ifand?
The wavelength of the electromagnetic wave emitted by the oscillator is .
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(a), a beam of light in a material1is incident on a boundary at an angle . Some of the light travels through the material 2, and then some of it emerges into the material 3. The two boundaries between the three materials are parallel. The final direction of the beam depends, in part, on the index of refraction of the third material. Figure (b) gives the angle of refraction in that material versus a range of possiblevalues. The vertical axis scale is set by and .(a) What is the indexof refraction of material , or is the index impossible to calculate without more information?
(b) What is the index of refraction of material 2, or is the index impossible to calculate without more information?
(c) It is changed to and the index of refraction of a material 3 is , what is ?
Figure:
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?
Question: A catfish is below the surface of a smooth lake. (a) What is the diameter of the circle on the surface through which the fish can see the world outside the water? (b) If the fish descends, does the diameter of the circle increase, decrease, or remain the same?
Each part of Fig. 33-34 shows light that refracts through an interface between two materials. The incident ray (shown gray in the figure) consists of red and blue light. The approximate index of refraction for visible light is indicated for each material. Which of the three parts show physically possible refraction? (Hint: First consider the refraction in general, regardless of the color, and then consider how red and blue light refract differently?
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?
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