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Structure of Atom question

2020 · 2 Sep · Shift 2 · Q3
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Structure of Atom question

2020 · 2 Sep · Shift 2 · Q3

JEE MainChemistryStructure of AtomNumerical+4 / −1
The work function of sodium metal is 4.41 ×\times× 10–19 J. If photons of wavelength 300 nm are incident on the metal, the kinetic energy of the ejected electrons will be (h = 6.63 ×\times× 10–34 J s; c = 3 ×\times× 108 m/s) ‾\underline{\hspace{2cm}}​ × 10–21 J.
Numerical answer
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