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PRADEEP-SOUND-NCERT Questions And Exercise
- How does the sound produced by a vibrating object in a medium reach yo...
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- Expalin how sound is produced by your school bell ?
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- Why are sound waves called mechanical waves ?
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- Suppose you and your friend are on the Moon. Will you be able to hear ...
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- Which wave property determines (a) loudness (b) Pitch ?
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- Guess which has a higher pitch : a guitar or a car horn ?
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- What are wavelength, frequency, time period and amplitude of a sound w...
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- How are the wavelength and frequency of a sound wave related to its sp...
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- Calculate the wavelength of a sound wave whose frequency is 220 Hz and...
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- A person is listening to a tone of 500 Hz sitting at a distance of 450...
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- Distinguish between loudness and intensity of sound.
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- In which of the three media : air, water or iron , does sound travel t...
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- An echo is returned in 3 s. What is the distance of the reflecting sur...
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- Why are the ceilings of concert halls curved ?
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- What is the audible range of the average human ear ?
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- What is the range of frequencies associated with (a) insfrasound (...
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- A submarine emits a sonar pilse, which returns from an underwater clif...
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