The wave function of a metal is 8.0 x \(10^{-19}\)J. Calculate the wavelength of its threshold frequency. (Speed of light in a vacuum = 3 x \(10^8ms^{-1}, P...

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The wave function of a metal is 8.0 x \(10^{-19}\)J. Calculate the wavelength of its threshold frequency. (Speed of light in a vacuum = 3 x \(10^8ms^{-1}, Planck's constant = 6.6 \times 10^{-34}\)Js)

0.8 x \(10^{-7}\)m

1 x \(10^{-7}\)m

2.3 x \(10^{-7}\)m

3.8 x \(10^{-7}\)m

12.4 x \(10^{-7}\)m

Elementary Modern Physics

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