When an electron and its antiparticle positron come close enough to each other, they completely convert into radiation energy in the form of photons, this process is called:
Correct answer: C. Annihilation of matter
- A. Photoelectric current
- B. Pair production
- C. Annihilation of matter
- D. Compton effect
Explanation
When two anti-particles, particles having the same masses but different charges, collide they are said to annihilate and vanish by converting into energy, while the process is called annihilation of matter.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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