Sodium Has a Work Function of 2

question 19

Multiple Choice

Sodium has a work function of 2.46 eV.Of the following wavelengths,which is the one of the longest wavelength that could cause photoelectrons to be released from the sodium?

• A) 300 nm
• B) 400 nm
• C) 500 nm
• D) 600 nm
• E) 700 nm

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