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The work function of substance is 4.0 eV...

The work function of substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately

Text Solution

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The correct Answer is:
C
`lambda(inÅ) = (12375)/(4.0) Å ~~ 3093 Å`
or `lambda ~~ 309.3 nm`
or `~~310 nm.`
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