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JEE Advanced 2008Paper 1
Exam
JEE Advanced
Year
2008
Paper
Paper 1
Subject
Physics
Chapter
Electromagnetic Waves

JEE Advanced 2008 · Paper 1 · Physics · Electromagnetic Waves

Which one of the following statement is WRONG in the context of...

Which one of the following statement is WRONG in the context of X-rays generated from X-ray tube?

Options

  1. AWavelength of characteristic X-rays decreases when the atomic number of the target increases
  2. BCut-off wavelength of the continuous X-rays depends on the atomic number of the target
  3. CIntensity of the characteristics X-rays depends on the electrical power given to the X-ray tube
  4. DCut-off wavelength of the continuous X-rays depends on the energy of the electrons in the X-ray tube

Correct answer

B. Cut-off wavelength of the continuous X-rays depends on the atomic number of the target

Step-by-step solution

Cut-off wavelength depends on the applied voltage not on the atomic number of the target. Characteristic wavelengths depend on the atomic number of target.
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