How Does Sound Travel? | Propagation of Sound | Sound Class 8 - L2 | NCERT Solutions for Class 8

[@VedantuJunior]

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[@gamerzella7060]

mam they are asking no. for telegram

[@raghavendraun7487]

Mam should we pay for telegram

[@kavitapatil3904]

Ma'am but that is for class 7 not for 8th . That telegram group...😥😥😥😥

[@kavitapatil3904]

Plz tall mam

[@kavitapatil3904]

Plz reply me ma'am...

[@samidhaharbude9798]

Mam u r made for teaching, matlab itna achha toh school teachers bhi explain nahi kar pati, u explain in such a way ki saamne wale ko doubt hi na aaye...👏👏👏

[@ronitdas1608]

True Mam Bohut accha padhati hai....or concept v bohot hi accha lagta hai

[@impulsenyt2077]

Not true for all teachers

[@valourshourya]

@@impulsenyt2077 true

[@valourshourya]

true

[@ranjeethgowda9072]

True mam

[@varshalan7524]

2:47 video starts

[@rajeevsankhla7012]

Thanks apne bata diya

[@-SamradnyeeGaikwad]

Class starts at 2:47

[@sanjayscience1400]

Speed of Sound Speed of Sound in Air - 340 meter per second Speed of Sound in water - 1500 meter per second Speed of Sound in Solid- 5000 meter per second

[@akshay3860]

Thanks

[@Sleepyquilt93]

@@akshay3860 BELUGAAA!!!!!!!!

[@anushkamanas2775]

Thank you sir....

[@Sleepyquilt93]

@tanya 3c tf is wrong with you

[@brihaspatkrishna2560]

its wrong bro approximately 6000 metres per second in solid about 1,480 meters per secondin water approximately 332 metres per second in air its the right one Get updated my boi

[@Humanitieskorner2025]

understand.... complete..... good explanation..... vedantu is better than school study....

[@ayushmondal1164]

don't go to school then

[@sanjeevsagar05]

yes

[@shreyapatil1900]

@@ayushmondal1164 if we want also we can't

[@anupamasarangi7233]

i don't like this.....bcz there is much more advertisements..........

[@saifrahman6824]

U r teaching skills is good i understood

[@thelaughingbooth6759]

2:50 video start

[@Officalvegeta749]

Thanks SSSSSSSSSS

[@rishithayadelli2055]

Tq

[@kriteriya4790]

Yeah tu

[@23mahimasogarwal41]

Tq...

[@v.h.pathak5725]

Thank you so much

[@valourshourya]

11:20 eg for sound in solid is.. apna kaan table pe lagake haath se table pe maare avaz zada aa rhi hai ab kaan hatake table pe maaro avaz kam aayegi

[@santoshkhamitkar3638]

Explaining startsa here 2:48 & ends here 11:46.

[@irshadahmad4859]

Mam u r are very intelligent why u leave vedantu 😭

[@sujijustin7624]

Why she left😢

[@zenon758]

2:50 is the starting thank me later😄😁

[@Harikrishnan-rd4ey]

@Pro Ashmal welcome

[@sandhyasandhya6853]

Thanks a lot bhai sorry to.say ye log bhot time waste kar te hai

[@shreya9011]

Thanks

[@Harikrishnan-rd4ey]

@@shreya9011 welcome

[@sandhyapatil1946]

Thank u

[@pragyansinha4635]

mam how can I ask my doubts in the group as THE GROUP DOESN'T ALLOW ME TO TYPE ANYTHING THERE?

[@aalisha7568]

Ohh really..? Then mam said that we can interact with teachers?

[@thespotlight4660]

Yes

[@aniljoshi6250]

Speed of sound in air is 343m/s.

[@chandalulla846]

Mam your so intelligent thanks for teaching thank a lot

[@Horizon24129]

Plz like and subscribe if you understand the topic

[@sunitawadhwani5095]

I think that in Online 40 minute class the teacher is only able to explain 1 or 2 topics of the ch but in 40 minute Nabamita mam complete half ch with very nice explaination

[@itsrvedits8033]

Literally it's kinda true 💜💜

[@waste2best881]

Very good teaching Mam 👏👏👍 . I understood the concepts and it really helped me for the exams

[@youtubeshorts1660]

My 🙏🏻😁 teacher in Vedantu Nabamita ma'am 🙏🏻👍🏼❤️ thanku for ur teaching

[@akanksha_xa8102]

The way you teach,makes it so easy for us to understand the full content of the chapter....thank you so much for teaching in such a nice way...

[@youtubeshorts1660]

I love Vedantu teaching 🙏🏻 since 2years I am in Vedantu

[@carehair1976]

Man you are great 🙂🙂🙂🙂🤔❤️ 🥇🅰️❤️🅿️

[@carehair1976]

🙂❤️🙂❤️

[@cbthekingff692]

What man or it's mam

[@pramodkumar-ps5xw]

Ye. Sala har student mam ko man kyu likhta h

[@mayankdaksh108]

Mam how does sound travel in head phones

[@reshamgupta9001]

how?

[@yashsaraswat9927]

In electrical energy coz electrical energy changes into sound energy in headphones

[@shahilkumar3119]

wires have molecules

[@ReenaKumari-rv6gl]

@@yashsaraswat9927 oo

[@rekhasharma1152]

@@shahilkumar3119 how sound is trevel in wireless head phone

[@shubhadasarvadnya2103]

Mam you are teaching very nicely 😊

[@pramodpandey2897]

Mam I have a question- How astronauts talk each other in space ??🤔🤔🤔🤔🤔

[@jitenderbhatia5700]

walkitalkie bro as their networks with their suit

[@papakiparichauhan4838]

Hello mam

[@Officalvegeta749]

because astronauts stay inside the iss or in the rocket and there is air inside iss or the rocket

[@mugdhabramhankar770]

Mam I understand these lessson very well by your nice teaching

[@gitanjalisamantaray2439]

U r really amazing mam.... Ur teaching style is amazing...... Please make a vdo on topic of ‘Some natural phenomenon’..... thank you so much mam ❤️❤️❤️❤️

[@prabharanawat7190]

Mam your teaching method is so nice

[@rampatmeena2016]

2:48 chapter chapter started

[@kritika5683]

Thanks

[@chronogaming7385]

The best vedio ever for sound

[@shrutiandsaisuradkar2589]

Mam ur teaching style is amazing ❣️ but I can't join this session when you has premiere that ... I think that you have shooted this session already and then posted it ... So that's why you was not reading live chat 🧐🤔and mam I think u leave vedantu 🧐 and join unacademy... But no problem I will support you there are also ❤️❤️ because you are my favourite teacher 😘

[@ojasransingh9140]

what is that english

[@akshitak2377]

Thank-you so much mam apki teaching bahut acchi h 🎉☺️

[@kumarravi7619]

Nice mam your teaching way is nice👌👌👌👌

[@suparnamukherjee8388]

Ma'am, how are the contraction and rarefaction related to the ups and downs of the waves

[@VedantuJunior]

That's a very good question. Whenever there is a contraction it is the crest (up) and when there is a rarefaction it is trough (down). The contraction and rarefaction is depicted as a wave.

[@manash18]

Oh moiu hudim buli vabi silu

[@urmil7171]

2:47 video started And thank you mam

[@bkkhushi4181]

2:50 Starts explanation of chapter

[@youtubeshorts1660]

Amazing 🙏🏻👍🏼❤️ teaching 🙏🏻😁 ma'am u made my day 💐💕 thank ❤️ you

[@ayishapandith4058]

There are 2 types of wave i.e, transvers wave n longitudinal wave... In case of transverse wave... They travel through crust n trough Crush - highest place a wave rises Trough- lowest position a wave sinks In case of longitudinal wave.... They travel by means of contraction n refraction Contraction-a place where particles are much closer. Here the density is high but volume is low Refraction - a place where particles are far away from each other. Here the density is low but the volume is high...

[@ayishapandith4058]

Sorry its not contraction... Its compression* i.e, region of high pressure

[@bhagyapattar1367]

R u in 9th standard

[@ayishapandith4058]

@@bhagyapattar1367 Yep

[@engineerbrains8912]

This is of 9th class

[@engineerbrains8912]

And I think that we are in 8th class

[@AB-ul6pr]

In lockdown the school Will be close and I can't understand my student thanks alot to understand me very very clearly ma'am

[@mintudevi514]

Same Regan

[@rajukumarierothi5751]

no we can also read tb we are lazy to read that it will help

[@user-rf1fx9cd3f]

The Vedio Starts At 2:50 thank me later🙄😒😒

[@dilipgangurde319]

Thanks

[@ashishmaurya3380]

Thanks😂😂😂😜

[@rex_08]

I won't even thank U, Because I saw ur comment at 3:00..Lol😑😑

[@adeeklamakhane8727]

Well teaching mam I hope your all dream can come true

[@invincibleboy3092]

I have a dought that - How sound travel in an earphone or headphone ? Mean how it is produced ?

[@nkstudio8549]

Through speakers 🤣🤣😂😂

[@NandkumarPatil-vf1uh]

Ma'am I understood the concept perfectly

[@GorkSandenski]

I'm quiet now, I will be quiet, *proceeds to talk*

[@saahaskumar8748]

3:19 what was that sound

[@tamadanavijaya4804]

this was interested chapter another chapter 3👍👍😎😎

[@urmilapatil.9988]

I don't learn properly from school, I learn from Vedantu :) thank you ma'am!

[@MY-24_always_smart-100]

lol

[@TrickiideaChelseachelsith]

Mam do we have to pay for installing this app

[@gyanbharadwaj2423]

Lol no

[@gamingwithaj2078]

@Pro Ashmal no bro

[@rutuljaiswal3221]

Nice way teaching mam

[@Jiiiinx30]

Mam you are teaching very nicely...... I understood all, what you said

[@thandaladka]

6:49 mam jab teacher chup rahane ko bolti hai to ham log yahi karte hai

[@justchristandcami]

no one: not a single soul: everyone in the comments: tHe vIdEo stArTs aT 2:47

[@jishnutalukdar30]

IDK if I'm wrong but ig it's should be compression instead of contraction...N Err thing else was real dope..... I'm here for a presentation.... Now I can make it... Thanks !

[@sheikhkashmiri3374]

Nice Teaching 🥰

[@shyamalavallin2780]

thank you so much for your spring sessions mam it is really really helpful for my syllabus mam thank you mam

[@jasbirsingh5581]

Nabamita man u r the best teacher 🥰🥰🥰🥰🥰

[@scienceworld287]

Man 😂😂🤣🤣🤣not Ma'am

[@vinaykumar-yj5og]

Mam why are you looking always at your right side

[@preetiverma3580]

Mam you are the best teachèŕ

[@Unknownperson-ep2qt]

Thank u mam😊

[@shiva321hero3]

Understand mam Thanks very much for teaching us

[@HEMANTKUMAR-zi3ip]

Mam ,your way of teaching is very good .THANK YOU!

[@anitapandey5261]

Your teaching style is awesome . I wish u could be my teacher then i would definitely score 100%

[@Mr--Human]

Congrats!! vedantu

[@rks_editz2579]

Did you did voice over

[@prakashbilla3376]

Mam you help me sooo Excellent teaching 😊😍😍🤗

[@ragineekumari3192]

멋지고 멋진 영상

[@PritiKumari-lo2ug]

Nice way of teaching...❤❤ma'am

[@MukeshKumar-nc9zx]

Ma'am how is contraction and rarefaction related to deep and peek of waves?

[@ilovemusicbyabheekjha4988]

Please see from 5:40 u will understand

[@snigdhaswain3469]

Thank u mam u really hepled me a lot in science during this pandemic situation........

[@rubykundra6961]

Very good video 👍🏼

[@halimabano9168]

is Sound more faster than light during travelling in solid please answer me mam

[@lifewithmysis]

No light is more faster than sound because if I take the example of thunder storm when thunder comes u first see light then here the sound hence proved light is more faster than sound

[@lifewithmysis]

I hope this ans is ok for you to understand

[@halimabano9168]

@@lifewithmysis but sound is travelling in air not in solid. Sound travel more faster in solid

[@lifewithmysis]

@@halimabano9168 but not faster than light light is much faster than sound

[@SheelaDevi-yh5yl]

Bro make difference between both Speed of light Speed of sound in solid

[@shivansh_dixit]

Mam when I like vibrate ny single hand, it doesn't make any sound. Why? You told in previous lecture that every vibrating thing will make sound

[@nishukumari6617]

Yes but it's not necessary that when there is a sound we can hear it. The human audible range is 20 Hz to 20,000 Hz. So if there is a vibration there is a sound and vice versa. But it's not necessary that we can hear it.

[@shivansh_dixit]

@@nishukumari6617 Thank you . That means it makes sound but we cant hear it ??

[@nishukumari6617]

Yes

[@rajumm9284]

@@nishukumari6617 yes.

[@shashiudeniya5766]

6:37 that picture scared me!!

[@hellishduniya5405]

WHY

[@yogeshduttsharma3782]

Kyu cutiya hai kya

[@yogeshduttsharma3782]

@@hellishduniya5405 cutiya hai Bhai ya

[@aravaramu10]

Mam ! Actually what is medium

[@The_Vlogging_Wind_8302]

13:5 solid.

[@vidyanandyadav7783]

Your are my favorite mam 😘❤️

[@vidyanandyadav7783]

😍😍

[@pardeepnain6063]

Ma'am now a days my daughter is able to join her class. Thanks. But tell us that when is your class plz tell

[@arushclinic5977]

Thanks mam to clear my bouts

[@milanpreetsingh8922]

Thank you ma'am for this.....but I have a doubt that does sound travels in vacuum? if possible then plss explain.

[@yakshyashu536]

Mam your teaching style is very nice

[@harshvardhan1507]

Mam you are great

[@anomauparwat1082]

Thank you mam very easy explanation 👍👍🙂🙂

[@rathod3780]

hi vedantu i am ashwariya rai my daughter aaradhya watches your videona lot. such a beautiful and intelligent teacher you are like beauty with brain

[@cueshekameiyungo2574]

Lmaoo...I thought that speed of time = 343 m/s......then what is this 340 m/s

[@tanujapandey66]

11:23

[@anupriyakushwaha5093]

Mam your teaching style is very churning

[@muskankashyap9672]

Mam you teach very clearly thank you mam

[@8-a22jasnoorkaur5]

Mam the topic was very easy to understand thank you mam

[@beautywonders984]

Thanks mam for this session I want to understood this chapter because my exams are near and I had did not attend this ch science online school class I want to understood so I see your add and now I am watching

[@Yuna._.Tuna_07]

same -,-

[@guitareoniladri9509]

TypingTyping

[@dragonman6391]

Seems like you missed your english class too 😔

[@anamikakumari8325]

Man sound is always rarefction compression rarefction or cmpression rarefaction compression

[@alfiyakhan1725]

Thanks..... Ma'am .....u r great... 😊

[@prachibhardwaj1784]

お母さん、あなたは最高の先生です.....

[@abhinavbenakanal1968]

Understood mam👍

[@lopamudrasahoo4921]

Mam your is very nice 👌

[@madhavaraokomanapalli8038]

Who are having exams soon like me 😂

[@airymite891]

Maam my headphones are also vibrating 😆😆

[@madhurirani3547]

Just i am listening this video by earphone

[@Vanshi.Chaudhary]

Mam uh r really grt teacher I understood all the things really in which way uhh teaches no one teaches like that even not tuition I get my solutions , but there it's really awsm place to study thanx for being a such kind teacher ❤️☺️

[@gurvinderkaur8336]

Ma'am u really teach next level 💯

[@sangeethaprhari7552]

Yes mam

[@swarupdearijitde9250]

Mam how are sound waves longitudinal or transverse.

[@sanjayscience1400]

Longitudinal

[@SanjeetKumar-nh1ec]

Mam u r the best and ur teaching method is superb , excellent 👌, outstanding ..