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प्रश्न
What is a stethoscope ? Name the principle on which a stethoscope works.
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उत्तर
Stethoscope is a medical instrument used by doctors to listen to the sounds produced within the human body, mainly in the heart and lungs. It works on the principle of multiple reflections of sound.
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संबंधित प्रश्न
A certain sound has a frequency of 256 hertz and a wavelength of 1.3 m.
1) Calculate the speed with which this sound travels
2) What difference would be felt by a listener between the above sound and another sound traveling at the same speed, but of wavelength 2.6 m?
Name the characteristic of sound in relation to its waveform
Displacement distance graph of two sound waves A and B, travelling in a medium, are as shown in the diagram below.
Study the two sound waves and compare their:
1) Amplitudes
2) Wavelengths
Define amplitude term in relation to a wave.
Define wave velocity term in relation to a wave.
Define the term Frequency (as applied to sound waves)
Name the type of waves that are used for sound ranging. Why are radio waves not audible to us?
When a sound is made from a distance of 18 m, in front of a tall building, it is found to get repeated again. Which phenomenon is associated with this observation? Give a brief explanation of this phenomenon?
A sound wavelength of 0.332 m has a time period of 10−3 s. If the time period is decreased to 10−4 s, calculate the wavelength and frequency of the new wave.
