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प्रश्न
Why is a loud sound heard at resonance?
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उत्तर
At resonance, the body vibrates with a large amplitude, conveying more energy to the ears, resulting in a loud sound.
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संबंधित प्रश्न
How does the medium affect the amplitude of free/natural vibrations of a body?
What are forced vibrations?
Distinguish between the free (or natural) and forced 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.
How do you tune your radio set to a particular station ? Name the phenomenon involved in doing so and define it.
(i) Define resonant vibrations.
(ii) Which characteristic of sound, makes it possible to recognize a person by his voice without seeing him?
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.
State two ways in which resonance differs from forced vibrations.
Explain why does the rear mirror of a motorbike start Vibrating Violently, at some particular speed of motorbike?
A string stretched between its ends is made to vibrate by placing the stem of a vibrating tuning fork at its one end. State three ways how you will increase the frequency of note produced by the string.
