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Structure of Atom question

2021 · Shift 2 · Q18
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Structure of Atom question

2021 · Shift 2 · Q18

JEE AdvancedChemistryStructure of AtomNumerical+4 / −1
Consider a helium (He) atom that absorbs a photon of wavelength 330 nm. The change in the velocity (in cm s −-− 1) of He atom after the photon absorption is ‾\underline{\hspace{2cm}}​. (Assume : Momentum is conserved when photon is absorbed. Use : Planck constant = 6.6 ×\times× 10 −-− 34 J s, Avogadro number = 6 ×\times× 1023 mol −-− 1, Molar mass of He = 4 g mol −-− 1)
Numerical answer
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