What Is the Wavelength of an Electron Traveling at of 3.74

question 8

Multiple Choice

What is the wavelength of an electron traveling at of 3.74% the speed of light?
(m_e=9.109×10^-31 kg,c=3.00×10⁸ m/s,h=6.63×10^-34 J·s)

• A)​1.54×10¹⁰ m
• B)​2.43×10^-12 m
• C)​6.49×10^-11 m
• D)​1.54×10¹² m
• E)​6.49×10^-13 m

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