Sound | Production and Propagation of Sound | Class 9 IX CBSE Science | Toppr Study

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Sound | Production and Propagation of Sound | Class 9 IX CBSE Science
Did you know how sound produced? how you can hear the different sounds? what are sound waves? propagation of sound, production of sound, the medium of sound, sound as and energy, etc. important topics are described in this video.
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Introduction of Sound
A sound is a form of energy like heat energy, light energy, potential energy, and kinetic energy. It causes a sensation of hearing in our ears.
Sound cannot be created nor destroyed but can be changed from one form to another. E.g., when we clap, a sound is produced. Here, muscular energy is converted into sound energy. This is in accordance with the law of conservation of energy. Similarly in an electric bell, when connected to electricity starts producing sound. Here, again electrical energy is converted into sound energy.
Production of Sound
Sound is produced due to the vibration of objects. The motion of materials or objects causes vibration. Vibration is a kind of rapid to and fro motion of an object about a central position. It is also referred to as oscillation. For example, a stretched rubber band when plucked vibrates and produces sound.
Propagation of Sound
The traveling of sound is called the propagation of sound waves. The matter or substance through which sound is transmitted is called a medium. The medium can be solid, liquid or gas. Sound cannot travel in a vacuum. A true vacuum refers to the complete absence of matter. Sound waves can travel only through matter.
So, sound needs a physical medium in order to travel anywhere. The wave that requires medium to propagate is called Mechanical Wave. For example - sound waves. Sound cannot travel in the absence of a medium.
All the above-mentioned topics are described in an interactive and efficient manner so that the students could easily understand them.
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Пікірлер: 1 800
@TopprStudy
@TopprStudy 5 жыл бұрын
To Ace, your CBSE Preparations do not miss watching CBSE Class 9th Playlist-kzbin.info/aero/PLKb9HOyS0VGR6GyN_gxBY4aG1UOCg32VF
@aksharatupe7038
@aksharatupe7038 4 жыл бұрын
Sir the video is very nice
@chiragvarshney7849
@chiragvarshney7849 4 жыл бұрын
Sir your teaching style is very good and different
@manoharsharnagat6957
@manoharsharnagat6957 4 жыл бұрын
Practice papers banaye na plz sir
@amitch7048
@amitch7048 4 жыл бұрын
Abay haat
@snehaverma9392
@snehaverma9392 4 жыл бұрын
Sir this video is very nice
@tanzeelanjum4645
@tanzeelanjum4645 2 жыл бұрын
Sir always uses "STUENTS" in every sentence. 😂😂😊😊
@himishmohan1120
@himishmohan1120 2 жыл бұрын
Yes
@aparichit5849
@aparichit5849 2 жыл бұрын
Right
@aparichit5849
@aparichit5849 2 жыл бұрын
@opbolte
@balanandjha6164
@balanandjha6164 2 жыл бұрын
@@aparichit5849 chadi kholte
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@gameratube7620
@gameratube7620 3 жыл бұрын
thank you sir i have scored 98% in my annuals in science i have seen your every video
@iyasirimam3921
@iyasirimam3921 3 жыл бұрын
Itna mat phek gadhe
@OmPrakashSingh-cj4iw
@OmPrakashSingh-cj4iw 2 жыл бұрын
Chal jhutha😂
@navkishoremurmu9931
@navkishoremurmu9931 2 жыл бұрын
Basss
@neelamholkar6066
@neelamholkar6066 2 жыл бұрын
You 98 me 99%%
@lxkshurana1058
@lxkshurana1058 2 жыл бұрын
I have Infinite Number 😂😂😂😂
@aayushraj1634
@aayushraj1634 4 жыл бұрын
Sir, I studied from many teachers but there are none of them explained the concepts better than you.... You have a very nice way of teaching.......
@sanjaybhushan4999
@sanjaybhushan4999 3 жыл бұрын
Yes sir I am also agreed
@Zainab_khan23
@Zainab_khan23 3 жыл бұрын
I also agreed
@suyashsahu6505
@suyashsahu6505 3 жыл бұрын
Education Hix se ek bar phad ke dekho .
@RajeevKumar-n9k3v
@RajeevKumar-n9k3v 8 ай бұрын
Ya see it too
@srushtilakhe628
@srushtilakhe628 3 жыл бұрын
No one teacher is taught more awesome than u... Fantastic sir Thank u
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@rajveershrivastavas6115
@rajveershrivastavas6115 Жыл бұрын
@@TopprStudy hmm
@randomshortswallah..5380
@randomshortswallah..5380 Жыл бұрын
A : -art of understanding students L : -love for all A : -art of teaching K : -kind hearted H : -hero of youth generation ...
@tarajaiswal3402
@tarajaiswal3402 2 жыл бұрын
I see your all the videos of class eight because your experience for science is extremely excellent
@TopprStudy
@TopprStudy 2 жыл бұрын
We are glad that you love our sessions. You might also want to check out our Class 9: Complete Science preparation playlist kzbin.info/aero/PLKb9HOyS0VGQ9I9YYgaaKeGdzFCJg5iYs and do join our Telegram channel bit.ly/TopprStudy
@kalpnagupta5cc971
@kalpnagupta5cc971 5 жыл бұрын
Aise hi teacher chaiye sabko sir🤗
@TopprStudy
@TopprStudy 5 жыл бұрын
Thanks, Kalpna.
@sonalilahiri5094
@sonalilahiri5094 Жыл бұрын
To respected sir, Thanks for gives us a such type of quality education .
@umashankarprasad8329
@umashankarprasad8329 5 жыл бұрын
Sir, Your teaching by using animation or sticker is very understandable for us ... Thanks for it Keep going it 😀😀😀😀
@uniquemaths6804
@uniquemaths6804 2 жыл бұрын
You are best teacher for 5 to 10th classes students .I never seen this type of teacher. You language is very interesting.
@drishikas10
@drishikas10 3 жыл бұрын
amazingg sir. the way you explain is incredible!! can you please answer this question: when two persons travel on a scooty or bike the person sitting behind is not able to hear the voice of the person in the front. why?? please answer sir.
@themotivatorji3070
@themotivatorji3070 3 жыл бұрын
Yes
@Multieditsx3055
@Multieditsx3055 3 жыл бұрын
it is because the person in the front covers the way or passage of the man behind him that person took all by himself ok understood.
@themotivatorji3070
@themotivatorji3070 3 жыл бұрын
@@Multieditsx3055 yes correct
@krushnachandrabarik6626
@krushnachandrabarik6626 3 жыл бұрын
Sir your teaching style is very different and I am always watching your videos
@sankalpajitboruah6266
@sankalpajitboruah6266 5 жыл бұрын
The technology of your videos is very good
@TopprStudy
@TopprStudy 5 жыл бұрын
Thanks a lot.
@NAYAN-t3e
@NAYAN-t3e 2 жыл бұрын
• Some facts about sound - 1) Mechanical/Electrical energy is transferred in the form of elastic strain energy of a medium in the form of vibration propagation in continuous medium. 2) As elastic as medium is, the sound propagates with minimum attenuation. This is also supported by the density of the medium. 3) Sound propagation is completely the form of mechanical energy of material medium whether it is solid, liquid or gas which responds to it elastically the disturbances. 4) Higher the frequency of sound is, fast is its propagation speed. It is as quick as continuous to hear or transmit. 5) Loudness or intensity of the sound is its the rate or flux to transfer the acoustic energy on unit area in unit time. Amplitude is the proportional factor. 6) Solids are quick & strong responsible for sound to propagate & reception. Comparatively, Gases are the least to responsive for sound. This is because the proportional effect of the elastic modulus relative to compactness of medium. 7) Temperature is also affecting the propagation of sound. Here, gases are significantly responsive to this effect because of affection on density & pressure in the medium. 8) Sound waves are longitudinal mechanical waves which requires material medium to propagate parallel to the vibration of molecules. They doesn't travel through vacuum. 9) Sound waves or energy is propagating in all directions. This means it propagates the energy in the medium equally irrespective of any directional effect. External intervention is done if it purposely to propagate in desired direction in medium. 10) Acoustic capability of a medium is depends upon the range of frequencies or maximum frequency (Natural) it can handle or sustain to propagate without attenuation or dissipation or structural failure.
@somasekharan5411
@somasekharan5411 3 жыл бұрын
"Student" count - infinite
@indianliveuser2438
@indianliveuser2438 3 жыл бұрын
Hubby
@somasekharan5411
@somasekharan5411 3 жыл бұрын
@@ZEDGEGAMERSjodddd lol
@chitralekharewatkar705
@chitralekharewatkar705 3 жыл бұрын
😂😂😂students
@animeshkoley4961
@animeshkoley4961 3 жыл бұрын
Bhai sahi bole
@shauryapandey551
@shauryapandey551 3 жыл бұрын
Yes bro
@Suraj-qh4hm
@Suraj-qh4hm 3 жыл бұрын
Sir,fantastic.
@arifarafat7149
@arifarafat7149 6 жыл бұрын
sir your video help me a lot and made me easy to understand.sir i request to you please upload all video of std 8 because i am student of std 8
@imeditor7638
@imeditor7638 2 жыл бұрын
Sir aapke jaisa teacher hona muskil h aap phir vapis aajao apne old padhane ke style me sbhi students vohi tarika pasand karte hai 😍😍😍
@urmilakumari2519
@urmilakumari2519 3 жыл бұрын
Thank you sir your teaching style is amazing.
@ketanbhardwaj509
@ketanbhardwaj509 3 жыл бұрын
Amazing style of teaching and also very easy to understand.
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@healthbodybuildingfitness7663
@healthbodybuildingfitness7663 3 жыл бұрын
Best teacher in the world for all subject maths, science,social studies, english perfect 👍💯
@shortsfun746
@shortsfun746 4 жыл бұрын
Sir if we talk in the presence of air , water and solid , then how can we talk on the phone ? In which medium we talk by mobile and how the satellite transfer the sound of one person to another . Please, explain it sir .
@nayatrisinha1145
@nayatrisinha1145 2 жыл бұрын
Such a wonderful session ... I loved it ... It's very nice I would like to thankyou topper and obviously sir for teaching in a friendly way😀
@TopprStudy
@TopprStudy 2 жыл бұрын
You are always welcome. We are glad that you liked the session. Keep watching our Class 9: Complete Science preparation playlist kzbin.info/aero/PLKb9HOyS0VGQ9I9YYgaaKeGdzFCJg5iYs. Do join our Telegram bit.ly/TopprStudy
@khushi6291
@khushi6291 2 жыл бұрын
Thank you sir no one can teach like you
@TopprStudy
@TopprStudy 2 жыл бұрын
We are glad that you like our teacher. But don't forget to watch Class 9: Science complete preparation playlist bit.ly/3rYtkK7 and do join our Telegram bit.ly/TopprStudy
@mananpancholi3627
@mananpancholi3627 3 жыл бұрын
Sir you teaches a uniqe why and teach very very well... Thanku sir for this good and a unique way of teaching
@gauravtiwari2003
@gauravtiwari2003 2 жыл бұрын
Even I am not student of CBSE class 9...Still I am watching your video because you teaching is very very great 👏💖.....
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@Scoobydooby9195
@Scoobydooby9195 2 жыл бұрын
Just imagine how many times sir said the word " students " 😂😂😂😂😂😂
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@prettyoon
@prettyoon 2 жыл бұрын
In every sentence 😂😂
@Scoobydooby9195
@Scoobydooby9195 2 жыл бұрын
@@prettyoon ya 😂
@meenakshiavni405
@meenakshiavni405 Жыл бұрын
More than 1 lakh time
@ramuumarkar9398
@ramuumarkar9398 4 жыл бұрын
Sir when you teach. I understand what is sound.
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/33VFX0k"
@prashantbhagat9397
@prashantbhagat9397 5 жыл бұрын
Thanku...u r an awesome teacher...
@SanjayKumar-ev3bk
@SanjayKumar-ev3bk 3 жыл бұрын
Sahi baat h bhai
@MrNooBMAstr
@MrNooBMAstr 3 жыл бұрын
A girl commented on my channel saying "nice vedio" her comment got 57 likes my vedio got 4 like 🤣
@jerseygamer1109
@jerseygamer1109 3 жыл бұрын
Nice jokee🤣🤣
@sameerkhanna2386
@sameerkhanna2386 3 жыл бұрын
Oorat ka chakkar Babu Bhai ya
@jerseygamer1109
@jerseygamer1109 3 жыл бұрын
@@sameerkhanna2386 sahi baat hai 😅
@sukhmansingh383
@sukhmansingh383 5 жыл бұрын
Kya bat hai yar very very excellent
@mr.bhangarbhai
@mr.bhangarbhai Жыл бұрын
100 times better than any teacher. Fully energetic video
@piyush007svt
@piyush007svt 6 жыл бұрын
I m ssc students and ur video is very beneficial thanks n hats of ur efforts
@amanchauhan3281
@amanchauhan3281 3 жыл бұрын
Sir tommorow is my science test now i can freely do my test because of your explanation thank you sir so much🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏
@rajatdeendayal942
@rajatdeendayal942 5 жыл бұрын
Very nice ! Brilliant ,outstanding, great ,majestic, terrific, excellent, superb,awesome... Good job!
@TopprStudy
@TopprStudy 5 жыл бұрын
Wooww... Rajat great words..... thank you so much. Keep liking us & also share it with others too.
@rajatdeendayal942
@rajatdeendayal942 5 жыл бұрын
Respected Sir, please complete this chapter. There are other concepts also which you should clear with other videos such as characteristics of sound , compression and refraction etc. Please my lord and you should make videos like this video that is in front of us ,it gives a feeling of classroom.
@MrinalParmar
@MrinalParmar 3 жыл бұрын
The splashing of water happens with only tuning forks or it happens with other type of instrument also?
@mayankgahlawat6598
@mayankgahlawat6598 4 жыл бұрын
Sir aapko aur aapke teaching method ko heads off
@shaelshaktisingh5474
@shaelshaktisingh5474 2 жыл бұрын
Thank You so much sir. You teach in a very good manner. I now understand everything.
@OmPrakashSingh-cj4iw
@OmPrakashSingh-cj4iw 2 жыл бұрын
Chal jhutha 😂
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@rajshreedodwani8504
@rajshreedodwani8504 4 жыл бұрын
It's so helpful sir...Thanks a lot🙏
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@anupamkumari8076
@anupamkumari8076 3 жыл бұрын
just one word for this teacher.......damn amazing.......
@sachinpatel-ui6zy
@sachinpatel-ui6zy 3 жыл бұрын
Yes
@shivamkumar9thhrollno.347
@shivamkumar9thhrollno.347 3 жыл бұрын
but its two words
@govusaurabh4126
@govusaurabh4126 5 жыл бұрын
wow sir i hav never seen a teacher like you...... that a nice way ....thanku sir... very thanku
@sandhyapal3083
@sandhyapal3083 2 жыл бұрын
Sir I've one doubt. Sir as you told that there have three forms of medium - gas, solid and water. So, if we throw a coin on water then the sound come. So, with the help of which medium the sound produces? It is water or gas medium. Because when we throw a coin towards water then the coin vibrate but at that time no sound produce but when the coin touche the water and then sink at that time sound produce. So, my question is with the help of which medium sound produce?
@justfr4nk468
@justfr4nk468 5 жыл бұрын
Sir you are one of the most energetic teacher I have ever met !
@TopprStudy
@TopprStudy 5 жыл бұрын
Thanks, Kunal....
@justfr4nk468
@justfr4nk468 5 жыл бұрын
No! Sir thanks to you .
@anandphirke5575
@anandphirke5575 3 жыл бұрын
😁😁🙏🏻
@DHANANJAY_SHARMA1432
@DHANANJAY_SHARMA1432 2 жыл бұрын
@@justfr4nk468 Like👍🏻👍👍👍🏻
@alijansalmani8341
@alijansalmani8341 2 жыл бұрын
Thanks sir I will understand this topic my doubt completely clear
@lifescholars4051
@lifescholars4051 5 жыл бұрын
Big fan of your teaching
@mamtarawat4575
@mamtarawat4575 4 жыл бұрын
Hi
@kartikeydwivedi9395
@kartikeydwivedi9395 3 жыл бұрын
Sir your teach style is good but when U understand us about liquid medium (water'coin) then speak gas. (Time duration 19:21)
@SHORTSREEL-sz3fk
@SHORTSREEL-sz3fk 2 жыл бұрын
Nice sir we can easily understand by the graphics nice explanation 👍
@TopprStudy
@TopprStudy 2 жыл бұрын
We are glad that our sessions help you understand the concept better. But don't forget to watch Class 9: Science complete preparation playlist bit.ly/3rYtkK7 and do join our Telegram bit.ly/TopprStudy
@vishakha588
@vishakha588 4 жыл бұрын
Sir, you are the best teacher of science in the world 👍👍
@priyanshudutta904
@priyanshudutta904 4 жыл бұрын
I am agreed with you
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/33VFX0k"
@abhayamallick9328
@abhayamallick9328 4 жыл бұрын
Very very nice and effective method of teaching.I understand fully.👍👍👍
@abhayamallick9328
@abhayamallick9328 4 жыл бұрын
👌👌👍👍☺️☺️😊😊💐💐
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/33VFX0k"
@Mayank-1402
@Mayank-1402 2 жыл бұрын
Sir make more such videos . It is very helpful.
@fcbarcelonafanclub7778
@fcbarcelonafanclub7778 2 жыл бұрын
Sir you teach very well 👍 Keep it up
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@ankitkumarsah9059
@ankitkumarsah9059 2 жыл бұрын
Sir jab do different directions se simultaneously sounds produce ho toh propagation kisi ek ka hoga us medium mein ya phir dono ka hoga?
@paradiseff7041
@paradiseff7041 5 жыл бұрын
Finally aaj mughe pta chal gya that i m a student. Thank u so much. Exept fr "students" the lecture was amazing...😊😊. Plzz "students" thora kam bolo😂😂. It is distracting sometimes...
@supriyasharma7211
@supriyasharma7211 4 жыл бұрын
What a nice comment 😀😀😀
@paarthsharma6561
@paarthsharma6561 4 жыл бұрын
Abe student Ko study karwa rahe hai to students hi bolenge teacher thodi na bolenge chup chap re sir ke bare me mat bol
@aqsa_edits
@aqsa_edits 4 жыл бұрын
@@paarthsharma6561 😂😂ri8
@laxmanpawar6849
@laxmanpawar6849 3 жыл бұрын
Sir when we hear sound which happened first is it vibration or sound which travel first it's my dout please accept these
@kushagrakhare2126
@kushagrakhare2126 3 жыл бұрын
Bro vibration produces sound
@SagarKumar-kh6ii
@SagarKumar-kh6ii 3 жыл бұрын
Thanks sir for giving broad knowledge about sound (vibration) it helps me for my beast prepration.🥰🥰😍😘
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@millimalik7873
@millimalik7873 3 жыл бұрын
Sir fluet se bhi sound vibration k zariye baida hoti hai?
@harshitamehta8437
@harshitamehta8437 4 жыл бұрын
Sir you explain the best.. ❤🙏👍 Thank you sir!! 😎
@ayushiranibarik7324
@ayushiranibarik7324 2 жыл бұрын
the way he repeats some phrases of his sentences reminds me of ANT-MAN arguing with Tony Stark for repeating during Endgame!
@hunardhingra724
@hunardhingra724 4 жыл бұрын
Thankuuu sir for clearing my all the doubts....😊
@i_m_dharmik1452
@i_m_dharmik1452 2 жыл бұрын
I Really Like your Style, Because You are the best sir on youtube. I like this video 😍 Thanks 👍🏻
@TopprStudy
@TopprStudy 2 жыл бұрын
So nice of you. Do watch our Class 9: Complete Science preparation playlist kzbin.info/aero/PLKb9HOyS0VGQ9I9YYgaaKeGdzFCJg5iYs. Do join our Telegram bit.ly/TopprStudy
@Clashbarb09
@Clashbarb09 5 жыл бұрын
Very good teaching personality sir😃😃😃
@TopprStudy
@TopprStudy 5 жыл бұрын
Thanks, Aayush.
@luckycharm7085
@luckycharm7085 3 жыл бұрын
Thanku sir , you ar awesome teacher and thanks a lot . you have solved al my doubts
@withabrar1
@withabrar1 4 жыл бұрын
I have no words to explain your teaching
@mrlion8369
@mrlion8369 4 жыл бұрын
Sir aap pura chapter kijiye 🙏🙏🙏
@thegamingera6828
@thegamingera6828 3 жыл бұрын
What a style of teaching great sir
@DhrumilSakhavala
@DhrumilSakhavala 3 жыл бұрын
I want make video like these which software are you using ????🙏🏻🙏🏻🙏🏻🙏🏻
@mehdihasanyt4227
@mehdihasanyt4227 4 жыл бұрын
Sir your study style is so beautiful 😍 I UNDERSTAND all this...thanks sir
@TopprStudy
@TopprStudy 4 жыл бұрын
Glad to hear that. for more videos please contact our support team at +91 8287971571 or 0261-4890016. You can also Whatsapp us on +91 90540 43867.
@satendra9614
@satendra9614 3 жыл бұрын
Sir your teaching way is very nice 👌👌👌👌 I like it
@gamerzfame5612
@gamerzfame5612 3 жыл бұрын
Sir apne stuents which should be students is said by you (*1035*) times.
@sehajpreetkaur6809
@sehajpreetkaur6809 3 жыл бұрын
It's really really really helpful and understoodable ..sir your teaching method is really really awesome.
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@bahadurbisht2102
@bahadurbisht2102 5 жыл бұрын
Sir Your voice and teaching style is excellent
@GautamKumar-jv2in
@GautamKumar-jv2in 3 жыл бұрын
Thank you so much sir Your every video is very important I most likely your video
@TopprStudy
@TopprStudy 3 жыл бұрын
For more videos please contact us at +91 8287971571
@mehreenmanzoor2003
@mehreenmanzoor2003 4 жыл бұрын
The starting of this session was just amazing, mindblowing.... Thankx a lot ...sir
@tany141
@tany141 2 жыл бұрын
BECAUSE OF U SIR MY SCIENCE SLABUS IS COMPLEATED IN 1 MONTH😁😁.. THANKS A LOT........
@easytoart5028
@easytoart5028 4 жыл бұрын
I must say.....Sir u r commendable.. .thnx a lot sir , it helped me alot
@mahiyadav9154
@mahiyadav9154 2 жыл бұрын
You makes our study so interesting sir thank u so much sir 😊
@prabhatsharma7966
@prabhatsharma7966 4 жыл бұрын
Aap padate hue bahut bahut chillllaate ho 😋😂🤣Pasand aaya to like karo
@jaynarayansah8744
@jaynarayansah8744 3 жыл бұрын
Sir your teaching style is very nice i understand well
@vandanajha123
@vandanajha123 3 жыл бұрын
Nobody can teach like you💯 you are a gem :-)
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/3qTdDEV"
@arshali1725
@arshali1725 2 жыл бұрын
U r right
@DHANANJAY_SHARMA1432
@DHANANJAY_SHARMA1432 2 жыл бұрын
Kya baat hai sir you are Gr8👍🏻👍👍🏻👍
@TopprStudy
@TopprStudy 2 жыл бұрын
We are glad that you liked our teacher. But don't forget to watch Class 9: Science complete preparation playlist bit.ly/3rYtkK7 and do join our Telegram bit.ly/TopprStudy
@poojak071
@poojak071 5 жыл бұрын
Sir, l like your all videos thank you sir
@muskankumari6312
@muskankumari6312 4 жыл бұрын
Such a super awesome teaching way...this u tube channel deserves more than a million subscribers
@PrashantMishra-ex7vu
@PrashantMishra-ex7vu 3 жыл бұрын
Sir how is sound produced by humans?
@decimalexplotion2235
@decimalexplotion2235 3 жыл бұрын
How sound produce in bluetooth earphones😂😂😂😂😂😂
@rikibhoina3906
@rikibhoina3906 4 жыл бұрын
You are the best teacher in the world
@shivanggupta2956
@shivanggupta2956 4 жыл бұрын
Your way of teaching is outstanding
@gyanendraprasad7646
@gyanendraprasad7646 3 жыл бұрын
Sir 🙏the way of teaching and explaining is very very prefect
@TopprStudy
@TopprStudy 2 жыл бұрын
"Keep watching the channel for more exciting content and for updates on live sessions join the telegram: bit.ly/TopprStudy Also, check out our playlist: bit.ly/33VFX0k"
@durvanawkhare9079
@durvanawkhare9079 5 жыл бұрын
Sir If hmne earphones phehente toh aaspass me air molecule nahi hote hai toh hum sound kaise sunte hai ? Sir please reply me
@resolver246
@resolver246 4 жыл бұрын
There are some air particles present between earphones and eardrum they carry the sound
@zainabhasnain4630
@zainabhasnain4630 4 жыл бұрын
Solid molecules se
@hammergaming2653
@hammergaming2653 2 жыл бұрын
Kash aapke jitna acha explain karne wale teacher's hamare school me vi hote 😩😩
@indianboysingh3885
@indianboysingh3885 4 жыл бұрын
Sir what a style of teaching
@TopprStudy
@TopprStudy 4 жыл бұрын
So nice of you
@mananff3114
@mananff3114 3 жыл бұрын
Awesome ,great, very interesting class,thanku so much sir
@brijeshsingh5650
@brijeshsingh5650 5 жыл бұрын
Sir AAP bahut mehnat karte ho hame samjhane ke liye Tnx sir
@tanumishra8927
@tanumishra8927 3 жыл бұрын
Can anyone tell which software sir uses for teaching
@rinakumari5302
@rinakumari5302 4 жыл бұрын
Really 🔥🔥
@daksh5276
@daksh5276 3 жыл бұрын
Sir I tell you that whatever doubts we have I always keeps come on your videos to clear............ As there is no vdo which is not understandable which taught by you...
@rajravi7664
@rajravi7664 6 жыл бұрын
What a teahing style !😯😯😯
@AnilKumar-wi5cy
@AnilKumar-wi5cy 5 жыл бұрын
Sir please free puri videi do aapko youtube se paise mil rahe honge
@X_Sano_07
@X_Sano_07 10 ай бұрын
Main to abhi class 12 pe hun...bas waise hi sir ji ko dekhne ko man kiya
@SudhirSharma-ci4dc
@SudhirSharma-ci4dc 4 жыл бұрын
osm ... what a style of teaching. Very nice.
@TopprStudy
@TopprStudy 4 жыл бұрын
Thanks a lot
@PRO_Education.
@PRO_Education. 3 жыл бұрын
@@TopprStudy sir what is your cost of full course 💰
@jattanrai2508
@jattanrai2508 3 жыл бұрын
@@PRO_Education. g
@PRO_Education.
@PRO_Education. 3 жыл бұрын
@@jattanrai2508 ha bolo bhai
@vibhavtiwari9779
@vibhavtiwari9779 3 жыл бұрын
Very best teacher in my whole life
@bihariupdate1393
@bihariupdate1393 5 жыл бұрын
Very nice sir..... I help me alot for my next 🎥
@wildindianhaker6316
@wildindianhaker6316 5 жыл бұрын
Hi
@wildindianhaker6316
@wildindianhaker6316 5 жыл бұрын
Mr Indian haker I am great fan of you.
@wildindianhaker6316
@wildindianhaker6316 5 жыл бұрын
I have watched a all videos
@souravgamer5
@souravgamer5 5 жыл бұрын
he is not mr India hacker bro
@souravgamer5
@souravgamer5 5 жыл бұрын
@@wildindianhaker6316 see his name
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