What Is the Wavelength of the Matter Wave Associated with an Electron

question 31

Multiple Choice

What is the wavelength of the matter wave associated with an electron moving with a speed of $2.5$ $\times 10 ^ { 7 } \mathrm {~m} / \mathrm { s }$ ? (melectron $\left. = 9.11 \times 10 ^ { - 31 } \mathrm {~kg} , h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right)$

• A) \(35 \mathrm { pm }\)
• B) \(29 \mathrm { pm }\)
• C) \(53 \mathrm { pm }\)
• D) \(47 \mathrm { pm }\)

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