$\mathrm { X }$ -Rays with a Wavelength Of $0.00100 \mathrm {~nm}$

question 117

Multiple Choice

$\mathrm { X }$ -rays with a wavelength of $0.00100 \mathrm {~nm}$ are scattered at $130 ^ { \circ }$ by free electrons. What is the kinetic energy of each recoil electron? $\left( 1 \mathrm { eV } = 1.60 \times 10 ^ { - 19 } \mathrm {~J} \right.$ , melectron $= 9.11 \times 10 ^ { - 31 } \mathrm {~kg} , c = 3.00 \times 10 ^ { 8 }$ $\left. \mathrm { m } / \mathrm { s } , h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right)$

• A) \(0.34 \mathrm { MeV }\)
• B) \(0.68 \mathrm { MeV }\)
• C) \(0.50 \mathrm { MeV }\)
• D) \(2.0 \mathrm { MeV }\)
• E) \(0.99 \mathrm { MeV }\)

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