Question 11

An X-ray photon of initial frequency 3.0*10^(19) Hz collides with a free electron at rest and is scattered through 90 degrees. What is its new frequency?

• A. 2.0*10^(19) Hz
• B. 2.4*10^(19) Hz
• C. 4.0*10^(19) Hz
• D. 1.2*10^(20) Hz
• E. 2.6*10^(20) Hz
• F. Lower than any of the frequencies listed

Formula Sheet

Question 10

Question 12

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