Q. Which one of the following statement is wronge in the context of X-rays generated from 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 X-ray tube
Explanation
(b) Cut-off wavelength depends on the applied voltage not on the atomic number of the target. Characteristic wavelengths depends on the atomic number of target.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.