Optical communication uses the frequency range of
(A) \( 10^{9} \) to \( 10^{10} \mathrm{~Hz} \)...
Optical communication uses the frequency range of
(A) \( 10^{9} \) to \( 10^{10} \mathrm{~Hz} \)
(B) \( 10^{14} \) to \( 10^{15} \mathrm{~Hz} \)
(C) \( 10^{5} \) to \( 10^{6} \mathrm{~Hz} \)
(D) \( 10^{16} \) to \( 10^{17} \mathrm{~Hz} \)
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