By how much is a signal’s strength reduced when the signal passes through an object thatintroduces 3 dB of attenuation？（）A、1/6B、1/4C、1/3D、1/2
By how much is a signal’s strength reduced when the signal passes through an object thatintroduces 3 dB of attenuation？（）
- A、1/6
- B、1/4
- C、1/3
- D、1/2
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