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प्रश्न
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a bare room
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उत्तर
The person would hear echoes when talking in a bare room.
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संबंधित प्रश्न
When a sound is reflected from a distant object, an echo is produced. Let the distance between the reflecting surface and the source of sound production remains the same. Do you hear echo sound on a hotter day?
What is meant by an echo?
A man is standing at a distance of 12 m from a cliff. Will he be able to hear a clear echo of his sound? Give a reason for your answer.
Which property of sound leads of the formation of echoes ?
Fill in the blank with suitable word :
Echoes are caused by the ...................... of sound.
What is the minimum distance in air required from a sound reflecting surface to hear an echo (at 20°C) ?
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a furnished room
Which of the following device does not work on the multiple reflections of sound waves ?
Answer the following question in your own words.
Study the construction of the Golghumat at Vijapur and discuss the reasons for the multiple echoes produced there.
How can you calculate the speed of sound using echo?
