In a Computer Monitor, Electrons Approach the Screen at 1

question 26

Multiple Choice

In a computer monitor, electrons approach the screen at 1.20 × 10⁸ m/s. What is the de Broglie wavelength of these electrons? Note: the mass of electrons is 9.109 × 10^-31 kg; and use the relativistic momentum in your calculation.

• A)4.31 × 10^-12 m
• B)5.56 × 10^-12 m
• C)6.07 × 10^-12 m
• D)6.62 × 10^-12 m
• E)7.85 × 10^-12 m

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