What is the wavelength of an hydrogen atom moving with a mean velocity corresponding to the average kinetic energy of hydrogen atoms under thermal equilibrium at 293K? 2.The speed of an electron is measured to be 1 km/s with an accuracy of 0.005%. Estimate the uncertainty  in the position of the particl

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1.What is the wavelength of an hydrogen atom moving with a mean velocity corresponding to the average kinetic energy of hydrogen atoms under thermal equilibrium at 293K?

2.The speed of an electron is measured to be 1 km/s with an accuracy of 0.005%. Estimate the uncertainty 
in the position of the particle

3.Determine the maximum wavelength shift in the Compton scattering of photons from protons

4.Calculate the de Broglie wavelength of electrons and protons if their kinetic energies are i) 1% and ii) 5% of their rest mass energies.

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