The relation, hf= 2m0c2 + KEe- + KEe+,holds a:
Correct answer: A. Pair production
- A. Pair production
- B. Compton effect
- C. Photoelectric effect
- D. Photo cell
Explanation
The given relation holds during the pair production process, where a high-energy photon is converted into an electron-positron pair. After this process, if the electron and positron annihilate each other, the total energy is still conserved.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
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 Dawn of Modern Physics questions
Positron is an anti-particle of:
The materialization of energy takes place in the process:
Disintegration of photon on striking a nucleus into an electron and positron is known as:
The minimum energy required by a photo to create an electron-positron pair is:
The reverse process of pair production is called:
If a particle of mass m is moving with a speed v, then De-Broglie's wavelength ' λ ' associated with it will be: