For an X-ray tube, plot log λₘᵢₙ versus log V, where V is the accelerating potential and λₘᵢₙ is the cut-off wavelength. Which graph is correct? Image
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For an X-ray tube, plot log λₘᵢₙ versus log V, where V is the accelerating potential and λₘᵢₙ is the cut-off wavelength. Which graph is correct? Image

G1 Physics · Accepted Answer

Step 1: For continuous X-rays use the Duane-Hunt relation λₘᵢₙ = hc/(eV). Step 2: For characteristic lines use the difference of shell binding energies or Moseley's law √ν ∝ (Z − b). Using the stated data gives C: Image 3.