If Each of the Following Metals Is Exposed to Light $\varPhi$

question 70

Multiple Choice

If each of the following metals is exposed to light with a wavelength of 240 nm, which will emit photoelectrons with the greatest kinetic energy?

• A)iron \(\varPhi\) = 7.2 * 10^-19 J)
• B)platinum \(\varPhi\) = 9.1 *10^-19 J)
• C)nickel (\(\varPhi\) = 8.3 *10^-19 J)
• D)palladium (\(\varPhi\) = 8.2 *10^-19 J)
• E)sodium (\(\varPhi\) = 4.4 *10^-19 J)

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