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Draw a labelled diagram of larynx and explain its functions.
Important Questions on Sound
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A key of the mechanical piano is first struck gently and then struck again, but much harder this time. In the second case:
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The frequencies of four sound waves are given below. Which of these sound waves can be used to measure the depth of the sea?
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Which of the following frequency of sound can be generated by a vibrating simple pendulum as well as by the vibrating vocal cords of a rhinoceros?
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Your parents are going to buy a house. They have been offered one house on the roadside and another house three lanes away from the roadside. Which house would you suggest your parents should buy? Explain your answer.
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The sound from an insect is produced when it vibrates its wings at an average rate of vibrations per second. Can we hear this sound? Why or why not?
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