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What minimum frequency of light is needed to eject electrons from a metal whose work function is $4.8 \times 10^{-19} \textrm{ J}$?

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 

$7.2 \times 10^{14} \textrm{ Hz}$

Giancoli 7th Edition, Chapter 27, Problem 17


Chapter 27, Problem 17 is solved.

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