Electrons Are Accelerated Through a Potential Difference of 90

question 43

Multiple Choice

Electrons are accelerated through a potential difference of 90.0 kV and directed at a tungsten target to produce x-rays. What is the cutoff frequency of the x-ray spectrum produced?

• A) 2.18 × 10¹⁹ Hz
• B) 2.10 × 10¹⁹ Hz
• C) 1.17 × 10²¹ Hz
• D) 9.25 × 10²¹ Hz
• E) 6.20 × 10¹⁵ Hz

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