1.

Image frequency is given by ________

A. f<sub>s</sub> + f<sub>i</sub>
B. f<sub>s</sub> ± f<sub>i</sub>
C. f<sub>s</sub> + 2f<sub>i</sub>
D. f<sub>s</sub> ± 2f<sub>i</sub>
Answer» D. f<sub>s</sub> ¬¨¬®¬¨¬± 2f<sub>i</sub>


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