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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.
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संबंधित प्रश्न
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.
How do you tune your radio set to a particular station ? Name the phenomenon involved in doing so and define it.
In fig. , P, Q, R and S represent test tubes each of height 20 cm which are filled with water upto heights of 10 cm, 14 cm, 16 cm and 18 cm respectively. If a vibrating tuning fork is placed over the mouth of test tube Q, a loud sound is heard.
(i) Describe the observations with the tubes P, R and S.
(ii) Give the reason for your observation in each case.
(iii) State the principle illustrated by the above experiment.

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