X-Rays with a Wavelength of 0

question 3

Multiple Choice

X-rays with a wavelength of 0.00100 nm are scattered at 130° by free electrons.What is the kinetic energy of each recoil electron? (1 eV = 1.60 × 10^-19 J,m_electron = 9.11 × 10^-31 kg,c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s)

• A)0.50 MeV
• B)0.99 MeV
• C)2.0 MeV
• D)0.34 MeV
• E)0.68 MeV

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The presence of certain elements within a test that systematically disadvantage a particular group of test-takers.