Question: The complex amplitude of the sum of an infinite number of waves with equal phase differences and amplitudes that decrease at a geometric rate

The complex amplitude of the sum of an infinite number of waves with equal phase differences and amplitudes

The complex amplitude of the sum of an infinite number of waves with equal phase differences and amplitudes that decrease at a geometric rate with a coefficient r is: U = Show that the corresponding intensity can be written in the form: Imax I where and 1 + To 1-reip 2F (F) Imax = F sin 10 (1-r) 1- () -r

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