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Anode FIGURE 27-2 Cathode rays deflected by electric and magnetic fields. (See also Section 17–11 on the CRT.) High • voltage Electric field plates Coils to produce magnetic field

Anode FIGURE 27-2 Cathode rays deflected by electric and magnetic fields. (See also Section 17–11 on the CRT.) High • voltage Electric field plates Coils to produce magnetic field

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Calculate the de Broglie wavelength of an electron if it
is accelerated from rest by 35,000 V as in Fig. 27–2. Is it relativistic? How does its wavelength compare to the size of the
“neck” of the tube, typically 5 cm? Do we have to worry
about diffraction problems blurring the picture on the CRT
screen?

Anode FIGURE 27-2 Cathode rays deflected by electric and magnetic fields. (See also Section 17–11 on the CRT.) High • voltage Electric field plates Coils to produce magnetic field
Transcribed Image Text:Anode FIGURE 27-2 Cathode rays deflected by electric and magnetic fields. (See also Section 17–11 on the CRT.) High • voltage Electric field plates Coils to produce magnetic field
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