Find the Largest Possible Wavelength for Electrons (M = 9

question 14

Multiple Choice

Find the largest possible wavelength for electrons (m = 9.11 *10^-31kg emitted from sodium (work function is 3.68 * 10^-19 J) when ultra-violet light (E = 5.90 * 10^-19 J) shines on it.

• A)6.39 * 10^-10 m
• B)8.10 * 10^-10 m
• C)1.04 * 10^-9 m
• D)1.47 * 10^-9 m
• E)There is no maximum wavelength.

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