An electron with velocity 4x106 ms strikes a lsquo he lsquo
An electron with velocity 4x10^6 m/s strikes a ‘ He+ ‘ ion. Discover the n^th energy level the electron will excite to. Compute the wavelength of the light as the electron returns to ground state.
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an electron with velocity 4x106 ms strikes a lsquo he lsquo ion discover the nth energy level the electron will excite
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