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प्रश्न
Which characteristic of sound makes it possible to recognize a person by his voice without seeing him?
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उत्तर
Timber or quality of sound.
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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.
Resonance is a special case of ______ vibrations, when frequency of the driving force is ______ natural frequency of the body.
When a troop crosses a suspension bridge, the soldiers are asked to break steps. Explain the reason.
A tuning fork of frequency 256 Hz will resonate with another tuning fork of frequency:
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.
A bucket kept under a running tap is getting filled with water. A person sitting at a distance is able to get an idea when the bucket is about to be filled.
(i) What change takes place in the sound to give this idea?
(ii) What causes the change in the sound?
What do you mean by resonance? When does resonance occur?
Explain why stringed musical instruments, like the guitar, are provided with a hollow box.
Explain a person walking past a railway line, in the middle of night hears a ringing sound along with the sound of his footsteps.
