lPractice Questions Ch 13
Which vibrating part of the tabla produces sound?
Mention two important properties of sound.
Define amplitude
Which frequencies are inaudible to human ear?
Explain why the voice of man , woman and children are different.
How is sound heard by our ears ?
What is the relation between sound produced by an object and its frequency, pitch, amplitude?
Differentiate between noise and music
What are the sources of noise pollution in a home?
Draw a neat and labelled diagram of the human ear.
How do dolphins and whales communicate inside the water? Explain.
How is the hearing ability of dogs different from that of humans? Why do the dogs get to know about the earthquakes earlier than humans?
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Answers
Answered by
1
Answer:
with the help of eardrum we heard sound.which is placed inside the ear
Answered by
2
Answer:
Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear.
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