The work function for Aluminium surface is 4.2 eV. Find the threshold wavelength for the photoelectric emission.
Answer & explanation
Correct answer: option 1
Threshold Wavelength is $ \lambda_0 = \frac{hc}{\phi} = \frac{12400 A^o}{4.2} = 2959 A^o$
The work function for Aluminium surface is 4.2 eV. Find the threshold wavelength for the photoelectric emission.
Correct answer: option 1
Threshold Wavelength is $ \lambda_0 = \frac{hc}{\phi} = \frac{12400 A^o}{4.2} = 2959 A^o$