Ultrasound (Application of Ultrasound) - Sound | Class 9 Physics

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Superlative elaboration of topic by a highly competent teacher on dedicated platform meant for teach everyone.....

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[@dinklekriplani]

Aplication of ultrasound In industry it is used for cleaning parts located in hard to reach place such as, coiled tube, electronic component, Odd Shaped Objects -3, 5, 7

[@MagnetBrainsEducation]

Thanks for your comment! We're glad you found our ultrasound video useful and appreciate that you took the time to share how it's applied in industry. We strive to provide helpful educational videos like this to students for free of cost, so we appreciate your feedback!

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[@anirudhrana713]

Ultrasounds have high penetration power but still why they do reflect from metal block not penetrating their? 19:18

[@MagnetBrainsEducation]

Thanks for your question! Ultrasounds have high penetration power, but the energy of the sound waves is reflected when it hits a solid surface like a metal block. This is because metal is a good reflector of sound waves. We hope this answers your question!

[@nikky2087]

Ma'am, at 5:43, I think it's 20,000 Hz not 20 Hz

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You're very welcome! We're glad to have been able to help you in your studies. Keep watching our videos and let us know if there's anything else we can do to help you!

[@anirudhrana9106]

But mam in presentation it is given that the crack in metal block would reflect the sound wave and you explained that such cracks wouldn't reflect sound wave except those places where their is no crack?

[@anirudhrana9106]

Please solve my doubt 🙏

[@MagnetBrainsEducation]

Thank you for your comment! You are correct - cracks in metals are not usually good reflectors of sound waves. However, where the metal is broken there may be places where the metal is not broken, and this can act as a reflector. Thanks for your observation!

[@deepalisaste8465]

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Previous Video: The Frequency Range of Hearing in Humans - Sound kzbin.info/www/bejne/m3bHnaugoNp8isk Next Video: Sonar-Sound Navigation and Ranging - Sound kzbin.info/www/bejne/f6uui2SQqrVra7s

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Nice explanation mam.

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video starts 2:30

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Nice explained Ma'am

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[@shajibegam9084]

But I have a doubt mam..u said that amniotic fluid is present outside the foetus that does not allow reflection of ultrasound ...then how will the baby's skin that is foetus will reflect it as it is present inside the amniotic fluid????

[@MagnetBrainsEducation]

Thanks for your thoughtful question! You are correct that the amniotic fluid is present outside the fetus, however, the ultrasound waves are able to penetrate the fluid and reflect off the baby's skin. In other words, the amniotic fluid does not block the ultrasound from reflecting off the fetus. We hope this helps!

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Very good man

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[@tedimediartist2705]

Mam is any application of infrasonic

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[@GullNaz-p9o]

What is tha name of rays or ultrasound

[@bhawnagautam....]

Mam ek doubt hai ki 20hz ki sound Ko to him maan sakte hain ki nhi sunegi mam but 20,000hz se Jada sound hum kaise nhi sun sakte kyuki 20,000hz se Jada to Hume sun jaani chahiye kyuki vo loud hai

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Bro the range is 20Hz to 20KHz for human ear and we can't hear sound below 20and above 20,000.

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[@Ghota41]

Mam application of sound can you explain me one time more

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Agar hum bhuat tez run karenge ya dare huye hote hai to hum apni heartbeat kbhi kbhi sun skte hai AISA KIYUN?? anyone no the answer plz reply

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Because our body needs more energy to overcome that so our heart have to pump more blood

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frequency jayada hoga toh time period bhi come hoga

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Mam mai aapse ak question puchana chahata hu

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Thanku mam 💜

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Mam ultrasound in jaundice ki bare batay

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Thanks mame

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Thanku mam

[@alokmandal4267]

Mam but ncert tells us children of 5year can hear the sound of frequency 25khz (25000hz)

[@alokmandal4267]

some body tell me please

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Ma'am thoda side ho kar padhaya kariya notes banana ma dikkat hoti h

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Mam ultrasound is harmful for are body?

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Yes

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Biophysics

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Superbb

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Mam kya elephant heart beat ko sun sakta hai

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Thank you so much mam for your help!

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Pitch Ans- How the brain interprets the frequency of an emitted sound is called it's pitch The faster the vibration of the source, the higher is the frequency and the higher it's pitch ma'am what does that mean

[@MagnetBrainsEducation]

Hi there! Thank you for your question. Pitch is the frequency of a sound that is perceived by the human ear. The higher the frequency of the sound, the higher the pitch. When a sound vibrates faster, the frequency is higher and so is the pitch. I hope this helps!

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@@MagnetBrainsEducation ok

[@ettireddyravichanderreddy9377]

but how these ultrasound waves penetrates through skin

[@MagnetBrainsEducation]

Hey there! That's a great question! Ultrasound waves are able to penetrate through the skin because they have a frequency range that is higher than that of sound waves. It's an amazing phenomenon that helps us to understand the inner workings of the body better. We hope you enjoyed the video!

[@aklimakhatun7212]

Mam but ultra sound hamare skin penetrate kar sàkta Hai par foetus ka kyu nehi kar sakta

[@aklimakhatun7212]

Aur wo reflect kar jae

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Yr ma pakistan sa ho to ap ap notes da sakta ho?

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Q

[@SunitaGupta-ud4zl]

Mam ultrasound ik sound wave hai toh ik sound wave se image kaise form ho sakti hai or stone kaise tor sakti hai???

[@gautamyadav1473]

it is because the reflected sound wave also called echo are returned back to the aparatus which converts the reflected sound wave into electrical signal which forms image .

[@civildigital2048]

Ma'am ncert book mai toh yeh diya hai that defects ultrasound ko reflect krta hai....,is this true?

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Legend's are waching this video one day before exam

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Lol

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Hey there! Thanks for watching our video! We're glad that it made you laugh. We hope you found it educational as well!

[@Samigaming559]

Galat padhaya h ,cracks reflect karti hain ultrasound naa ki cracks absorb karti hain 😡

[@MagnetBrainsEducation]

Hi there! Thank you for sharing your feedback. We understand your concern, and we apologize that the video did not meet your expectations. We will make sure to review all the details in our future videos and provide more clarity. Thank you for watching our video!

[@shortcoveringkashikari]

Thanks mam

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Nice explanation mam

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Thank u so much ma'am ❤️

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