Question

how resonance is used in radio and television​

Answer 1

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The frequency of the Radio station and TV station matches with the frequency which is set in the Radio device and the waves of the same frequency cause the radio to move the vibration in increased amplitude... This is the application of radio in resonance.

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Answer 2

True

This is a resonance in the circuit--- when you have a bunch of different

frequencies driving a resonant system, the response is only strong for

those frequencies which are close to the natural frequency of the

resonant oscillator. The frequency dependent amplification is used to done through the resonance circuit for a desired frequency.