Calcium Has a Work Function of 4

question 3

Multiple Choice

Calcium has a work function of 4.64×10^-19 J. Which of the following wavelengths will eject electrons from calcium?

• A) 375.2 nm
• B) 401.8 nm
• C) 442.4 nm
• D) a & b
• E) a, b, & c

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