Give a mathematical relation between wavelength and momentum of a particle.
where X is the wavelength of the wave; h is Planck's constant p(=mv) is momentum.
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55.
What is the most important application of de-Broglie concept?
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56.
Name the experiment used to verify the wave nature of electrons?
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57.
The wavelength of a proton, an electron and an α-particle moving with the same velocity are in the order: electron > proton > α-particle. How do you justify it?
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58.
Write the mathematical form of Heisenberg's uncertainty principle.
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59.Is Heisenberg’s uncertainty principle applicable to stationary electron? Give reason.
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60.
What is the meaning of orbital in terms of probability distribution of electrons?
Short Answer Type
What is the energy of an electron in the hydrogen atom in the ninth state?
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