The photon is the particle, which has:
Correct answer: C. No rest mass and no charge
- A. Infinite rest mass
- B. Rest mass but no charge
- C. No rest mass and no charge
- D. A and C are correct
Explanation
Photons are massless particles with no rest mass. They also do not carry any electric charge. They are the quanta of light and other forms of electromagnetic radiation, propagating through space as both particles and waves.
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
The inertial frame has:
In a subatomic world, things can be predicted with _ precision.
The frame of reference could be
-------- is conserved in pair production.
What is the de Broglie wavelength associated with an electron, accelerated through a potential difference of 200 volts?
The photoelectric effect is not possible with _ photons.