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प्रश्न
Name the device used by doctors to listen to our heartbeats.
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उत्तर
A stethoscope is a device used by doctors to listen to our heart beats.
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संबंधित प्रश्न
What name is given to the repetition of sound caused by the reflection of sound waves ?
What name is given to the persistence of sound in a big hall or auditorium ?
What is reverberation ? What will happen if the reverberation time in a big hall is too long ?
Consider the following sound waves marked A, B, C and D.
(a) Which two waves represent sounds of the same loudness but different pitch ?
(b) Which two waves represent sounds of the same frequency but different loudness ?
(c) State whether all these sound waves have been produced by the same vibrating body or different vibrating bodies ?
(d) Which vibrating body/bodies could have generated the sound waves shown here ?
Explain by giving a scientific reason.
The roof of a movie theatre and a conference hall is curved.
Explain by giving a scientific reason.
The intensity of reverberation is higher in a closed and empty house.
Where and why are sound-absorbing materials used?
The repeated reflection that results in persistence of sound is called ______.
What is Reverberation?
Why are the roots and walls of the auditorium covered with rough plaster?
