Ultrasound

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[@learningisfun488]

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[@JyotiPandey-cg9to]

Why doctors use ultrasound not infra sound , and how bats knows that reflected waves is of his prey not of obstacle. Reply anyone please .

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[@shaikhabdullah7500]

AS MY TOMORROW IS MY LAST EXAM THIS HELPED ME OUT WITH THE EXPLANATION OF THE VIDEO

[@DeltaStep]

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[@muskankukkar7187]

I have a question if ships send ultrasounds, these sounds strike the fishes and other creatures as well so why doesn't it confuse them..

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[@WeldingandNDT321]

Frequency at which animals receive single is different then ships frequency.

[@shaikhabdullah7500]

THANK YOU SIR IT HELPS ME A LOT NOW I CAN GET A BEST MARKS IN EXAM

[@DeltaStep]

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[@shivaleelasiddapur3036]

It's helps us in revision and good teacher

[@DeltaStep]

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[@triptisingh2125]

really this deltastep classes are good

[@DeltaStep]

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[@manishsharma2592]

awesome explanation congratulations

[@DeltaStep]

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[@chandrashanmugam5008]

Usefull for me as a class 9 student. I have a seminar on this topic and i got the content from you sir.thank you

[@DeltaStep]

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[@shaikhabdullah7500]

Same with me

[@mkhanstar9552]

Sir why we dont hear the alternating current sound whose freqency is 60 hz

[@DeltaStep]

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[@WeldingandNDT321]

If you stand near bare cables then you can hear that but as current flowing through cables is covered with insulator so when current generate sound will be absorbed by these insulators during transmission.

[@lalitendurout2940]

Sir. I follow most of your videos to get my doubts cleared. But in this video I could not understand how a part of the ultrasound wave reflects back and rest penetrates further.would you plz clear my doubt by answering my question. I hope you will clear my doubt.

[@DeltaStep]

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[@nitusingh3363]

It would be funny for u but if we can hear between 20 to 20,000 Hz then why can't we hear above 20,000 Hz please clear my doubt🙏

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[@aamiriqbal2644]

it's good for revision

[@DeltaStep]

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[@suhbatalisolangi2823]

Very very nice sir

[@DeltaStep]

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[@manoramayadav9813]

Classes are so good

[@DeltaStep]

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[@shreyaghodake32]

Nice

[@DeltaStep]

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[@footballworld4094]

very good

[@DeltaStep]

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[@yashpunk3215]

Nice thumbnail

[@DeltaStep]

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[@koppaladevi4470]

Reply for complaints also ok

[@DeltaStep]

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[@rutujashinde7042]

Ya sir it's nice

[@DeltaStep]

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[@sejalgupta4747]

Thank you so much sir

[@DeltaStep]

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[@sejalgupta4747]

@@DeltaStep ok sir

[@jeevannm7655]

Sir 100000 hz makes more sound

[@chandrashanmugam5008]

Ultrasound can't be heard by human beings

[@chandrashanmugam5008]

Fool

[@yakubalam7536]

it's average

[@e.mageswaranm.lohitha838]

Nice

[@DeltaStep]

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