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प्रश्न
Which object is vibrating when the following sounds are produced?
(i) The sound of a sitar
(ii) The sound of a tabla
(iii) The sound of a tuning fork
(iv) The buzzing of a bee or mosquito
(v) The sound of a flute
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उत्तर
Sound is produced by the following objects:
(i) Vibrating stretched strings of sitar.
(ii) Vibrating stretched membranes of tabla.
(iii) Vibrating prongs of a tuning fork.
(iv) Vibrating wings of mosquito.
(v) Vibrating air columns in flute.
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संबंधित प्रश्न
Explain how sound is produced by your school bell.
What is sound and how is it produced?
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
Can sound travel through (a) iron, and (b) water?
A tuning fork has a number 256 marked on it. What does this number signify?
A device called oscillator is used to send waves along a stretched string. The string is 20 cm long, and four complete waves fit along its length when the oscillator vibrates 30 times per second. For the waves on the strings.
(a) what is their wavelength?
(b) what is their frequency
(c) what is their speed?
A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing rang. This note must then be passing through.
Match the following:
| Human larynx | Vibrations of metal arms |
| Loudspeaker | Vibrations in air column |
| Jal-Tarang | Vibrations in vocal cords |
| Tuning fork | Vibrations in strings |
| Sitar | Vibrations of screen |
Describe an experiment to show that sound cannot travel through vaccum.
Suppose a stick is struck against a frying pan in vacuum. Will the frying pan vibrate? Will we be able to hear the sound? Explain.
