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Unformatted text preview: z < exerts on the piece at z > 0. (30 points) 3. a) Derive a wave equation from Maxwells equations and Fnd the corre-sponding wave velocity. (Hint: take the curl of the third and the fourth one of Maxwells equations.) (15 points) b) ind monochromatic plane waves that solve Maxwells equations. (10 points) c) A wave as you found them in b) hits a spherical black body (radius R ), that is an object that absorbs all radiation that falls onto it. How much energy and momentum does the wave transfer to the black body in a time interval t ? Which direction does the resulting force have? (15 points) 1...
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- Spring '11