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प्रश्न
What is sound and how is it produced?
उत्तर
Vibration is what produces sound. When a body vibrates, it forces the neighbouring particles of the medium to vibrate. This creates a disturbance in the medium, which travels in waves. When it reaches the ear, this disturbance produces sound.
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संबंधित प्रश्न
Explain why you can predict the arrival of a train by placing your ear on the rails without seeing it.
Can sound travel through (a) iron, and (b) water?
Which of the following cannot transmit sound? Water, Vacuum, Aluminium, Oxygen gas
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
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?
Figure X shows a trace of a sound wave produced by a particular tuning fork :
(a) On the graph paper given in Figure Y, draw a trace of the sound wave which has a higher frequency than that shown in figure X.
(b) On the graph paper show in Figure Z, draw a trace of the sound wave which has a larger amplitude than that shown in Figure X.
A key of mechanical piano is first struck gently and then struck again but much harder this time. In the second case :
Medium is ______ for generation of sound.
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is __________.
How are different sound notes generated in musical instruments like guitar, which uses strings for sound generation, and flute, which uses blown air for sound generation?
