Dual Nature of Matter and Radiation Part 1

Section: Physics
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Question : 37 of 100
 
Marks: +1, -0
The surface of a metal is illuminated alternately with photons of energies E1=4eV and E2=2.5eV respectively. The ratio of maximum speeds of the photoelectrons emitted in the two cases is 2. The work function of the metal in(eV) is ______.
[5 Sep 2020 Shift 2]
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