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Chapter 23: Q33 P (page 990)
What is the wavelength of ultraviolet light whose frequency is ?
The wavelength of the ultraviolet light is .
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A small laser used as a pointer produces a beam of red light in diameter and has a power output of . What is the magnitude of the electric field in the laser beam?
A thin converging lens of focal length 20m is located at the origin and its axis lies on the x axis. A point source of red light is placed at location . Where is the location of the image of the source? Is it a real or a virtual image? It helps to draw a diagram and trace the “easy” rays.
An electric field of acts on an electron, resulting in an acceleration of for a short time. What is the magnitude of the radiative electric field observed at a location a distance of away along a line perpendicular to the direction of the acceleration?
For a particular liquid–air interface the critical angle (fortotal internal reflection) is . The index of refraction of air is1.00029.What is the index of refraction of the liquid?
At time , electrons in a vertical copper wire (Figure 23.122) are accelerated downward for a very short time (by a power supply that is not shown). A proton, initially at rest, is located a very large distance L from the wire.
Explain in detail what happens to the proton (neglect gravity), and at what time.
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