Question

Name the phenomenon involved in tuning a radio set to a particular station.

Answer 1

Resonance:

1. Resonance may be defined as that phenomenon when the applied force’s frequency is equal to the natural frequency of the body.
2. The body grasps the vibrations and it starts to vibrate with an increased amplitude.
3. It is a basic cause of sound production in musical instruments.
4. It will only occur if the first object is vibrating at the natural frequency of the second object.
5. A resonance that depends upon vibration occurs when equipment or a product is exposed to an external forced vibration occurring at one or more of its natural frequencies.
6. The frequency at which the second body starts oscillating or vibrating at a higher amplitude is called the body’s resonant frequency.
7. The main importance of this type of phenomenon is that the circuit can either absorb or radiate the maximum amount of energy at resonance.

Explanation:

1. A common example is a typical radio receiver. Various frequencies from many radio stations are impinging on the antenna of the radio set at the same time.
2. To tune exactly a radio receiver, we just adjust the settings indicated on the electrical components in the manner that vibrations of the exact same frequency of the radio waves we wish to receive are generally produced.
3. When both the frequencies will match because of resonance, the energy of the signal at that frequency is received from the incoming waves.

Thus, resonance is the main phenomenon, which is involved in tuning a radio set to a particular station.