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प्रश्न
State de Broglie hypothesis.
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उत्तर
The waves associated with moving particles are called matter waves. Matter has both particle nature and wave nature. The wave nature of matter is understood from its wavelength (called de-Broglie wavelength) given by:
λ = `h/p`
or,
λ = `h/(m v)`
Where p is the momentum.
संबंधित प्रश्न
Write the expression for the de Broglie wavelength associated with a charged particle of charge q and mass m, when it is accelerated through a potential V.
Why we do not see the wave properties of a baseball?
Write the relationship of de Broglie wavelength λ associated with a particle of mass m in terms of its kinetic energy K.
An electron and an alpha particle have the same kinetic energy. How are the de Broglie wavelengths associated with them related?
Explain why photoelectric effect cannot be explained on the basis of wave nature of light.
Describe briefly Davisson – Germer experiment which demonstrated the wave nature of electrons.
What should be the velocity of the electron so that its momentum equals that of 4000 Å wavelength photon.
Calculate the de Broglie wavelength of a proton whose kinetic energy is equal to 81.9 × 10–15 J.
(Given: mass of proton is 1836 times that of electron).
A deuteron and an alpha particle are accelerated with the same potential. Which one of the two has
- greater value of de Broglie wavelength associated with it and
- less kinetic energy?
Explain.
The ratio between the de Broglie wavelength associated with proton accelerated through a potential of 512 V and that of alpha particle accelerated through a potential of X volts is found to be one. Find the value of X.
