Q. In a material medium, when a positron meets an electron both the particles annihilate leading to the emission of two gamma ray photons. This process forms the basis of an important diagnostic procedure called
A) MRI
B) PET
C) CAT
D) SPECT
Explanation
(b) In a material medium, when a positron meets an electron both the particles annihilate leading to the emission of two $\gamma$-ray photons. This process forms the basis of an important diagnostic procedure called PET
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.