Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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Cutoff Wavelength of X-rays Coming from a Coolidge Tube Depends on the - Physics

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Question

Cutoff wavelength of X-rays coming from a Coolidge tube depends on the
(a) target material
(b) accelerating voltage
(c) separation between the target and the filament
(d) temperature of the filament.

  • target material

  • accelerating voltage

  • separation between the target and the filament

  • temperature of the filament.

Solution

accelerating voltage

Cutoff wavelength (`lambda_min`)  is given by `lambda_min = (hc)/(eV)`

Here,
h = Planck's constant
c = Speed of light
V = Accelerating voltage
e = Charge of electron
Clearly, a cutoff wavelength depends on accelerating voltage. It does not depend on the target material, separation between the target and the temperature of the filament.

  Is there an error in this question or solution?

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Solution Cutoff Wavelength of X-rays Coming from a Coolidge Tube Depends on the Concept: Electromagnetic Spectrum.
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