If the Momentum of an Electron Is $1.95 \times 10 ^ { - 27 } \mathrm {~kg} \cdot \mathrm { m } / \mathrm { s }$

question 155

Multiple Choice

If the momentum of an electron is $1.95 \times 10 ^ { - 27 } \mathrm {~kg} \cdot \mathrm { m } / \mathrm { s }$ , what is its de Broglie wavelength? $( h =$ $6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s }$ )

• A) \(420 \mathrm {~nm}\)
• B) \(170 \mathrm {~nm}\)
• C) \(340 \mathrm {~nm}\)
• D) \(210 \mathrm {~nm}\)
• E) \(520 \mathrm {~nm}\)

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A former socialist state that existed from 1922 to 1991, comprised of Russia and several surrounding countries, known for its role in global politics during the 20th century.

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