Pair production occurs only when energy of photon is at least equal to:
Correct answer: B. 1.02 MeV
- A. 1.02 keV
- B. 1.02 MeV
- C. 1.02 eV
- D. 1.02 GeV
Explanation
Pair production occurs when the energy of the photon is at least 1.02 MeV. This process is an essential phenomenon in particle physics, where a high-energy photon creates an electron-positron pair in the presence of a nucleus or an electron.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Photons and the Particle Model of Light
The particle model treats light as photons with energy E equals hf and momentum related to wavelength. Questions involve the photoelectric effect, work function, threshold frequency, stopping potential and photon energy, while distinguishing particle behaviour from the wave description of interference and diffraction.
Practise Dawn of Modern Physics
739 free Dawn of Modern Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Photons and the Particle Model of Light questions
Einstein's Photoelectric equation is Ek =hf -Φ in this equation Ek refers to:
In the electron-position pair production, the speed of the electron is:
The antiparticle of an electron is:
Pair production cannot take place in a vacuum because:
The positron has charge which is in magnitude equal to the charge on:
Wave-particle duality does not explain: