Q. In an $X$-rays tube, the intensity of the emitted $X$-rays beam is increased by
A) Increasing the filament current
B) Decreasing the filament current
C) Increasing the target potential
D) Decreasing the target potential
Explanation
(a) By changing the filament current with the help of rheostat, thermionic emission intensity of $X$-rays can be changed
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.