AIIMS2004Physics-Particle Physics
AIIMS 2004 Physics Annihilation MCQ Question
Type: MCQ-conceptual-Medium-Class 12
When an electron-positron pair annihilates, the energy released is about
A
0.8 × 10⁻¹³ J
B
1.6 × 10⁻¹³ J
C
3.2 × 10⁻¹³ J
D
4.8 × 10⁻¹³ J
Correct Answer
Option B
Detailed Explanation
Antiparticles of stable particles (such as the position and the antiproton) are themselves stable. However, when a particle and its antiparticle meet, the annihilation reaction can occur, the particle and antiparticle both vanish and instead two or more photons can be produced.
Found an issue with this question?