A physicist wishes to eject electrons by shining light on a metal surface. The light source emits light of wavelength of `450 nm`. The table litsts the only available and their work fucntions. `{:("Metal",,,,W_(0)(eV)),("Barium",-,,,2.5),("Lithium",-,,,2.3),("Tantalum",-,,,4.2),("Tungsten",-,,,4.5):}` Which option correctly identifies the metal that will produce the most energetic electrons and their energies?A. Lithium, `0.45 eV`B. Tungston, `1.75 eV`C. Lithium, `2.30 eV`D. Tungston,`2.75 eV`

A physicist wishes to eject electrons by shining light on a metal surf

1.	A physicist wishes to eject electrons by shining light on a metal surface. The light source emits light of wavelength of `450 nm`. The table litsts the only available and their work fucntions. `{:("Metal",,,,W_(0)(eV)),("Barium",-,,,2.5),("Lithium",-,,,2.3),("Tantalum",-,,,4.2),("Tungsten",-,,,4.5):}` Which option correctly identifies the metal that will produce the most energetic electrons and their energies?A. Lithium, `0.45 eV`B. Tungston, `1.75 eV`C. Lithium, `2.30 eV`D. Tungston,`2.75 eV`
Answer» Correct Answer - A

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