The momentum of moving photon is:
Correct answer: C. h/λ
- A. mc2
- B. I/h
- C. h/λ
- D. zero
Explanation
p=hf/cfrom this equation momentum becomes h/λ
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
Which one of the following factors is the best for calculating Compton's shift?
The kinetic energy of emitted electrons in photoelectric effect can be increased by increasing _
At what angle made by scattered photons with x-axis , we can get the maximum value of Compton's shift?
As per 2nd photoelectric experiment, photoelectric effect does not occur if the frequency of the incident light is?
Black body is an ideal radiator that radiates ................. at all wavelengths.
Photoelectron emission depends upon the: