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JEE Main 12 Apr 2019 Paper 1 Solved Paper

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Question : 6

Total: 90

The stopping potential V0 (in volt) as a function of frequency (v) for a sodium emitter, is shown in the figure. The work function of sodium, from the data plotted in the figure, will be. (Given. Planck’s constant (h) =6.63×10−34 Js, electron charge e=1.6×10−19C

1.82 eV
2.12 eV
1.95 eV
1.66 eV

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