Multiple choice general knowledge science & technology

What is antiparticle?

  1. Negetive energy produced within the atom of a matter.

  2. Each type of matter has a particle and a corresponding anti-particle. When particle collides with its anti-particle they annihilate, leaving only energy

  3. Dark matter present throughout the Universe.

  4. None of the above

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Every fundamental particle has a corresponding antiparticle with the same mass but opposite charge and quantum numbers. When a particle meets its antiparticle, they annihilate each other, converting their entire mass into energy according to E=mc². For example, an electron's antiparticle is the positron. This principle is fundamental to particle physics.