Assuming that the smallest measurable wavelength in an experiment is 0.570 fm , what is the...

Assuming that the smallest measurable wavelength in an experiment is 0.570 fm , what is the maximum mass of an object traveling at 745 m ⋅ s^-1 for which the de Broglie wavelength is observable?

When an excited electron in a hydrogen atom falls from n=7n to n=2, a photon of ultraviolet light is emitted. If an excited electron in an He+ ion falls from n=5, which energy level must it fall to (n1) for ultraviolet light of a similar wavelength to be emitted?

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queen_honey_blossom answered 3 months ago

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