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6:40
Consider a composite wave formed by two plane waves with slightly different frequencies of
0 = 2.7 x 10 rad/s and o = 2.9 x 102 rad/s
and respective wavelengths A = 17.0 nm and Å, = 16.0 nm. Calculate the propagation velocity
of the carrier wave and give your results in units of m/s with 1 digit precision, rounding off to one
decimal place, L.e. the nearest tenth. (time budget 5min)

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