Electrons in an X-ray tube are accelerated through a potential difference of 40 kV. The electrons then strike a zirconium (Z = 40) target. Determine the cutoff frequency for X-ray production. A)4.7 × 10¹⁹Hz B)9.7 × 10¹⁸ Hz C)3.2 × 10¹⁸ Hz D)6.7 × 10¹⁷ Hz E)1.1 × 10¹⁶ Hz

Question

Quizplus · Accepted Answer

The cutoff frequency is determined by the energy of the electrons, which is given by eV = hf, where e is the electron charge, V is the potential difference, h is Planck's constant, and f is the frequency. For 40 kV, the cutoff frequency is approximately 9.7 × 10^18 Hz.

Electrons in an X-Ray Tube Are Accelerated Through a Potential