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प्रश्न
Name the phenomenon involved in tuning your radio set to a particular station and define it.
उत्तर
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.
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संबंधित प्रश्न
How does the medium affect the amplitude of free/natural vibrations of a body?
Describe a simple experiment to illustrate the phenomenon of resonance and explain it.
When a troop crosses a suspension bridge, the soldiers are asked to break steps. Explain the reason.
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Free and forced vibrations.
On keeping the stem of a vibrating tuning fork on the surface of a table, a loud sound is heard. Give reason.
Give two examples of forced vibrations.
Explain Why are stringed musical instruments provided with large sound boxes?
What do you understand by free (or natural) vibrations?
What are the factors that affect the frequency of a vibrating string and how do they affect the frequency?
