Question

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

• A. Wavelength of characteristic X-rays decreases when the atomic number of the target increases.
• B. Cut-off wavelength of the continuous X-rays depends on the atomic number of the target
• C. Intensity of the characteristic X-rays depends on the electrical power given to the X-ray tube
• D. Cut-off wavelength of the continuous X-rays depends on the energy of the electrons in the X-ray tube

Answer 1

Answer: (B)

${\lambda }_{\text{cutof }}=\frac{hc}{eV}$
(independent of atomic number)