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MBD -HARYANA BOARD-SOUND-EXAMPLE
- Write the following frequencies in their increasing order: Voice of a...
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- How do we hear sound?
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- What is length of vocal cords in man?
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- Which term is used to refer to unpleasant sounds ?
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- How sound is produced in Musical Instruments?
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- What is the unit of loudness?
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- Name an instrument with pleasant sound.
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- What is hearing impairment?
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- What are causes of hearing impairment?
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- Give an example of loud noise.
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- At which unit, sound becomnes harmful?
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- Which of these sources would cause the most noise pollution ?
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- Which natural organism is important to reduce noise pollutioon?
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- What is noise pollution ?
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- Define the term time period, frequency and amplitude.
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- One astronut speaks with another astronaut on Moon. Can the other astr...
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- The voice of a lion is different from that of a mosquito because
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- Explain with simple experiment to show that sound propagates through s...
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- How is the human voice produced?
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- What is ultrasound ? Describe some of its practical applications ?
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