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प्रश्न
Name two sources of sound.
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उत्तर
Each vibrating body is a source of sound. We, the human beings, produce sound when our vocal cords vibrate on blowing air through them by our lungs. Some animals like birds, frogs etc., also produce sound due to vibration of their vocal cords. But bees do not have the voice-boxes. They produce sound by moving their wings up and down very fast.
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संबंधित प्रश्न
Fill in the blank.
Sound is produced when a body ______.
Can sound travel through (a) iron, and (b) water?
What is the general name of the waves consisting of :
(a) compressions and rarefactions?
(b) crests and troughs?
What is the name of the strings which vibrate in our voice box when we talk?
A tuning fork has a number 256 marked on it. What does this number signify?
Give reason for the following :
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
Medium is ______ for generation of sound.
Different sound notes have different ______.
Write the answer in your own words.
What is meant by vibration?
Sound is produced by ______.
