When light of wavelength 800A illuminates a metal
the most energetic photoelectron emitted can just
ionise the hydrogen atom in ground state. What is
the work function of the metal (approximately)?
(1) 1.2 eV
(2) 1.9 eV
(3) 3.4 eV
(4) 4.8 eV
Answer is 1.9 i.e. 2nd option
pls help me out
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Answer:
B - 1.9 eV is the work function
Explanation:
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