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Question
Name the phenomenon involved in tuning your radio set to a particular station and define it.
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Solution
The phenomenon involved is resonance. It is a special case of forced vibrations. When the frequency of an externally applied periodic force on a body is equal to its natural frequency, the body rapidly begins to vibrate with an increased amplitude. This phenomenon is known as resonance.
RELATED QUESTIONS
Name the phenomenon involved in tunning a radio set to a particular station
Describe a simple experiment to illustrate the phenomenon of resonance and explain it.
In fig. shows two tuning forks P and Q of the same frequency mounted on separate sound boxes with their open ends facing each other. The fork A is set into vibration. (i) Describe your observation. (ii) State the principle illustrated by this experiment.
Differentiate between the following:
Radio waves and light waves.
What do you mean by resonance? When does resonance occur?
Explain why stringed musical instruments, like the guitar, are provided with a hollow box.
State two ways in which resonance differs from forced vibrations.
