a. Describe the statement of four Maxwell's Equations. Use Maxwell's theory to show that E = 1/2πr ∆Φ/∆f = A/2πr ∆B/∆t and I = ε0 ∆(Φ)/∆t.b. A sodium surface is illuminated with light of wavelength 300 nm. The work function for sodium is 2.45 eV. Find the K.E of the ejected electrons and the cut-off wavelength for sodium.

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a. Describe the statement of four Maxwell's Equations. Use Maxwell's theory to show that E = 1/2πr ∆Φ/∆f = A/2πr ∆B/∆t and I = ε0 ∆(Φ)/∆t.b. A sodium surface is illuminated with light of wavelength 300 nm. The work function for sodium is 2.45 eV. Find the K.E of the ejected electrons and the cut-off wavelength for sodium.