If the work function of thoriated tungsten is 4 $\times$ 10^-19 J,the longest wavelength of light that will cause photoelectrons to be emitted is approximately A)880 nm B)400 nm C)495 nm D)700 nm E)181 nm

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The Answer of If the work function of thoriated tungsten is 4 $\times$ 10^-19 J,the longest wavelength of light that will cause photoelectrons to be emitted is approximately A)880 nm B)400 nm C)495 nm D)700 nm E)181 nm

If the Work Function of Thoriated Tungsten Is 4 ×\times× 10-19 J,the Longest Wavelength of Light That Will Cause Photoelectrons

If the Work Function of Thoriated Tungsten Is 4 $\times$ 10^-19 J,the Longest Wavelength of Light That Will Cause Photoelectrons