JEE Advanced2008PhysicsElectromagnetic WavesActual
Which one of the following statement is WRONG in the context of X-rays generated from X-ray tube?
Options
- AWavelength of characteristic X-rays decreases when the atomic number of the target increases
- BCut-off wavelength of the continuous X-rays depends on the atomic number of the target
- CIntensity of the characteristics X-rays depends on the electrical power given to the X-ray tube
- 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.