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JIPMER2005PhysicsElectromagnetic Waves

The minimum wavelength of X-ray emitted by X-ray tube is 0.4125 Å . The accelerating voltage is

Options

  1. A30 kV
  2. B50 kV
  3. C80 kV
  4. D60 kV

Correct answer

A. 30 kV

Step-by-step solution

From the formula aligned e V & =h c V & = h c e = 6.6 10⁻³⁴ 3 10^8 1.6 10⁻¹⁹ 0.4125 10⁻¹⁰ & =30 10^3 volt =30 kvolt aligned

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