Identify the de Broglie expression from the following.
Correct answer: B. λ= h/p
- A. λ=h x p
- B. λ= h/p
- C. λ= h+p
- D. λ= h-p
Explanation
The de Broglie expression is λ=h/p, where λ is the wavelength, h is Planck's constant, and p is the momentum of the particle.So the answer is λ=h/p.The de Broglie equation states that all matter, even particles, has wave-like properties. The wavelength of these matter waves is inversely proportional to the momentum of the particle. This means that particles with a high momentum have a short wavelength, and particles with a low momentum have a long wavelength.The de Broglie equation has been verified experimentally for a variety of particles, including electrons, neutrons, and atoms. It has also been used to explain a number of phenomena in quantum mechanics, such as the diffraction of electrons and the wave nature of light.
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.