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प्रश्न
When acoustic resonance takes place, a loud sound is heard. Why does this happen? Explain.
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उत्तर
When acoustic resonance takes place, a loud sound is heard. This is because the natural frequency becomes equal to the frequency of externally applied force hence a loud sound is heard.
संबंधित प्रश्न
Define the Resonance phenomenon?
Describe a simple experiment to illustrate the phenomenon of resonance and explain it.
Resonance is a special case of ______ vibrations, when frequency of the driving force is ______ natural frequency of the body.
Differentiate between the forced and resonant vibrations.
In following figure shows A, B , C and D represent test tube each of height 20 cm which are filled with water up to heights of 12 cm, 14 cm, 16cm and 18cm respectively. If a vibrating tuning fork is placed over the mouth if test tube D, a loud sound is heard.
- Describe the observations with the tubes A, B and C when the vibrating tuning fork is placed over the mouth of these tubes.
- Give the reason for your observation in each case.
- State the principle illustrated by the above experiment.
State two ways in which resonance differs from forced vibrations.
Explain a person walking past a railway line, in the middle of night hears a ringing sound along with the sound of his footsteps.
What do you understand by forced vibrations?
Explain free and forced vibrations. Give an experimental arrangement to illustrate the phenomenon of resonance.
