Define the phenomenon named by you in tuning a radio set to a particular station.
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Solution
The phenomenon involved in tuning a radio set to a particular station is called resonance.
The word resonance comes from Latin and means to ‘resound’ – to sound out together with a loud sound.
Resonance is a condition of forced vibrations. When the frequency of an externally applied periodic force on a body is equal to its natural frequency, the body readily begins to vibrate with an increased amplitude. This phenomenon is known as resonance.
Resonance is a common cause of sound production in musical instruments.
Resonance only occurs when the first object is vibrating at the natural frequency of the second object.