Sound - Amplitude,Frequency & Time Period | Sound Class 8 - L3 | NCERT Solutions for Class 8 | CBSE

[@VedantuJunior]

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[@manavsingla6795]

Condict history class for claas 8

[@kavitapatil3904]

Mam that telegram group is class7 not for 8 plz tall mam

[@ilovemusicbyabheekjha4988]

Arrey baba

[@ilovemusicbyabheekjha4988]

@@kavitapatil3904 It is for 6-8 kitni baar batayein

[@brajkishoreprasad4481]

Code dalne se kya hoga batao

[@somurajesh5419]

frequency is the number of vibrations completed in unit time

[@blinkarmy7532]

hiiiiiii ma'am

[@shisui7780]

Yo who asked

[@Qwerty2471-g7f]

@@blinkarmy7532 somu rajesh mam hai?💀

[@rushamarora3901]

15:00 the audible range for human beings is 20hz to 20000hz

[@Icycloud07]

She said kilohertz 1 kilohertz=1000 heartz understand kid

[@slman9724]

Ash gaming bot she said kilohertz not kiloheartzzz...... 😏😏😏😏😏😏☹️☹️☹️☹️☹️😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏😏

[@shisui7780]

That's what she said

[@zohaibvlog9358]

Wow ma'am ur teaching style is so good

[@rajendraswami3055]

you are right

[@manzishthashukla2627]

Yes mam it is true mam

[@ShubhamGupta-di1sv]

10-11

[@akshatadevasur]

video starts at 5:35

[@agamer94]

Video starts at 1:47 Ends at 16:53

[@krishsharma3303]

AGAMER94 thx

[@leonidas281]

Thanks😊

[@Craftycanvascreations9]

12:23 absolutely mam u explain very beautifully..

[@somurajesh5419]

frequency is the measurement of the number of times that a repeated event occurs per unit of time.

[@hmrdarkhawk8543]

in simple words, it is how many waves pass a point every second

[@88Gamer880]

1:00 ch is start

[@Maira-e6j]

18:09 Audible sound range - 20Hz to 20,000Hz Infrasonic wave(inaudible sound) -less than 20 Hz Ultrasonic wave (inaudible sound) -more than 20,000Hz

[@SulathaShetty-i9y]

The dog in audible and inaudible is so cute 🥰

[@avdheshnayak811]

Your expertise in teaching has put our minds at ease. Thanku ma'am for your great effort and brilliant explanation

[@coolfoolgaming5280]

Bhak bsdk sabse tatti video hai ye bhadwee

[@saudsstuff7488]

So many people are confused and hope to get there doubts cleared by you in this comment section.

[@apurv7707]

Tnx nobita mam

[@kavitadharra9018]

Frequency = how many times did oscillation takes place

[@triplesgamerz12]

Thanks for your help...

[@triplesgamerz12]

@Nitigya Nandan Bhagawati yes bro

[@sanskrutipisal8811]

she is so sweet......everything she explains very properly.....I am preparing for my exams by watching her videos....I dont even read my textbooks then also I score highest in my revision tests THANK YOU SO MUCH NABAMITA MA'AM

[@Hgbyxj]

Which exam are you preparing Any competitive exam.

[@sanskrutipisal8811]

@@Hgbyxj no....school exams...term examinations

[@socialmediaentertainer7885]

Abbacha

[@ilovemusicbyabheekjha4988]

@@socialmediaentertainer7885 ??

[@ardhnadevi7924]

Mam urr explanation is very best.. Now,,, I'm understand all topics.. ,,,thnx a lot,,,😊

[@kdrama_edits3221]

Thanks ma'am all doubts got cleared. I wish u could join vedantu again

[@haniyafathima5338]

tq u master tr nabamitha mam it was really helpful for my exam as i didnot listen to my class properly and didnt understand de consept properly and after watching the video i understood it very well...

[@breezedarjes1754]

Thanks Mam....😄😄😄

[@surekhapawar6026]

Good explain

[@syashasvi7966]

thank you ma'am for clearing my doubts

[@krishnaranjan8933]

Thank you mam

[@amarsingh-wf6jl]

The maximum displacement of an oscillating body from its central position is called amplitude (ob or oa)

[@hemant01624]

Hii

[@kdrama_edits3221]

:0

[@CreativNavigation]

(summary of lesson 1 and 2 of nabita ma'ams videos) -Vibration is the faster movement of a body which could or could not produce sound, pretty close to oscilation. -In a flute we do not a have a sensation of a vibration, we have a air column, when air is passed through the air column, it collides the column boundaries, and if noticed the musician playing the flute places his/her hand on to the holes. Therefore creating sound! -Another example of this is and old ancient form of producing sound, filling few bowls of water and while using some sticks you can create ripples in the water (the water in each bowl should be different for the difference in the sounds produced) These ripples are the result of vibration or the impact of the stick hitting the bowls. -By this we also conclude that souns create vibration, and vibrations creates sound! -In humans we can take an anology of a flute as well, the wind pipe acts as the air column and the sound is produced through vocal chors which also produce vibrations. the vibration here is produced when we exhale while talking, the air molecules hit eachother creating vibrations and therefore sound! (Fun fact of my own: You can't talk while inhaling!) - Sound is energy, let's take an instance, i am talking about something and you are able to hear it. This is because, while talking i transfer the energy produced from my vocal chords to the air molecules present in air. - These molecules then start moving passing the energy (sound) from one molecule to another and therefore letting the sound travel. - The origination of the sound is the place where the molecules which have the energy colide with eachother, this colision pushes the molicules further away, and therefore coliding with the molecules present in front. - This is how contraction and relaxation takes place. - The sound is also enabled too travel in solids and liquids.

[@rajnikumari106]

Nice effort 👌

[@dipaknag3402]

Thanks for this mam

[@anshukumari8a088]

Thanku mam.Your teaching style is too good mam.

[@iamamoneymagnet5519]

Video start at 1:25 thank me later

[@snehabaghele8283]

Very easily understand mam you are the best

[@Tangent192]

Mam you had explained so easily and your teaching way is also so good,but a doubt is raising that what is amplitude, mam can you plz tell it in another way plz,plz.

[@sheelavegkitchen7658]

06:30 is nice

[@renushrivastav8604]

Audible range of sound that human beings can hear is 20hertz -20,000 hertz

[@shortshub444]

Yes

[@sakshikalhe5129]

Mam you r awesome 😊😊😊😊

[@__hwk___aayush1335]

Mam is not awesome her teaching skills are good

[@Rockonmanish]

Thank you for teaching well in this lockdown

[@scgalld1]

Carry ke fan ho toh like thoko

[@ysgaming465]

Bahot tej ho raha ho

[@sangitagaur7552]

Thank you mam😊 Your explanation is wow.. ❤️

[@samruddhideshpande1783]

Mam ur teaching is very very amazing

[@rex_08]

Nabamita Ma'am teaches wow! But Still i have a doubt😅 What is And where is Equilibrium in sound or Amplitude

[@agmaioshorts.4257]

equilibrium is the position of air molecules when it is not disturbed by vibrations or other things so it is the undisturbed position of air molecules.

[@theadam5341]

@@agmaioshorts.4257 Ok thanks

[@abdulmotleb5036]

Nice mam I understand

[@mayurinakerekanti]

Hello.. i dont know why i am confusing.., my question is 1.what is the relation between the amplitude and peak to peak in a waveform? 2.what is the relation between frequency and time? Please answer these.. I am still confusing after watched your videos also..

[@gudi204]

I too , have the same doubt

[@subhashreemamali1118]

The more the frequency the less is the time period

[@srushtimullur9786]

Urs explination is superbb tq so much mam

[@somurajesh5419]

mean position is the rest position of a vibrating body

[@glitchgaming3840]

Thank u mam You teach very nice.😍😍

[@AnilKumar-xv9os]

what is the difference between high, low sound and loudness of sound

[@anujagarwal1094]

Mam y'r english is very good very amazing very good very nice

[@shivanigupta5134]

Mam that question you asked in 14:55 that what range of sound can we hear is 20-20,000 hertz

[@qwerty7488]

Aplitude

[@skylords2487]

Perfect teaching

[@PankajKumar-zx4ci]

Audible range of sound that human beings can hear is 20Hz to 20000Hz. And the inaudible range of sound is below 20Hz and above 20000Hz. AM I CORRECT????🤔🤔🤔

[@tarushikapoor223]

yes

[@COBRATELEVISION]

abselutely correct!

[@uhhuhhhyeah2390]

Yes u r correct

[@surekhatolmare6781]

Awesome mam you're explanation is very nice it's should easy to understand.....

[@shikhakhandelwal284]

Awesome explanation....now frequency /amplitude are all clear to me

[@vikashnirmal1718]

Thankuuuu so mach maam 🤗😍😍

[@poonamprasad3478]

Ma'am thank you very much. U always help💝

[@dikshaartvibes7302]

Mam which is high effective medium?

[@anupallavi.m9724]

Thanks mam I loved u r class

[@prakritisingh7428]

Mam : I will draw it because Picasso is my relative.. Me : immediately likes the video..

[@ajaychouhan8922]

Chal be

[@prakritisingh7428]

@@ajaychouhan8922 kaha denk bhaiya ji?

[@OFFICIAL_GAMER_0]

excellent teaching, mam

[@kokiluzir7959]

22:36

[@valourshourya]

2:18 just imagine that the particles are been hitten from the left side and they are going far away

[@bluevoidgamer8901]

Thank you very much mam and to all vedantu master teachers

[@ishamalik6928]

Thank you mam for this explanation, you are great 🥇🥇🥇😉😉😉

[@abhinavbenakanal1968]

20 to 20,000 Hertz of every human being

[@savitadamor789]

🍌🍌🍌🍌🍌🍌🍌🍌🍌

[@mridulabhuyan3635]

🍂🍂🍂

[@ramashankaryadav4446]

Yes

[@dnlxcenzo]

dj alok op..... chrono be like: tera baap aaya i have chrono

[@mridulabhuyan3635]

@@dnlxcenzo chrono is tatti it only saves shots but his disadvantage is car ...every character has disadvantage.

[@gauravtiwari2003]

15:12...Frequency is measured in Hertz(Hz)....😎

[@punamsingh6146]

Ma'am my name is harsh raj . Very very good morning to you ma'am .Ma'am, please put a chapter on "Friction" . Ma'am I need the knowledge of this chapter.

[@badrishorts6179]

It is very good to understand for me mam

[@harikrishnan2713]

Man, I have a doubt. Why amplitude does not affect the time period of the longitudinal wave? If I take the example of a sound wave, then amplitude means the maximum distance covered by the air particle to either left or right side to it from the equilibrium, right mam? So, If amplitude is higher, the particle has to cover that much distance to its right, then to the mean position, then to the left, and then back to the mean position to complete one oscillation, if my understanding is right. Then won't the particle take more time to complete one oscillation? I am really confused 🙁

[@safiarais]

you should ask this question in her telegram, she'll reply you, I hope so.

[@sanvisharma2946]

actually low frequency mai particles bohot slow move kar rahe hai ....that's why they are taking more time and in high frequency particles are moving fast ....that's why they are taking less time... I HOPE YOU UNDERSTAND ..🤗

[@hmrdarkhawk8543]

because the amplitude is the movement perpendicular to the wave motion it does not affect the limit of frequency because it is the vertical axis

[@harikrishnan2713]

@@hmrdarkhawk8543 But as far as a longitudinal wave is concerned, the direction of wave is same as the direction of amplitude.

[@srinivasgoudkoyyada3162]

Hi mam I can understand Ur explanation please give me heart

[@ganeshchoudhury5308]

I loved the session mam!! It was cristal clearly understood Thank u for clearing out doubts

[@haseebimtiyaz5354]

It's crystal ok

[@hmrdarkhawk8543]

crystal clear

[@stylishgamer8001]

Thanks

[@simrangirdhar622]

What is the speed of sound in solid and liquid??

[@NirajKumar-cr1ls]

Speed of sound in solid is 343m/s

[@NirajKumar-cr1ls]

Speed of sound in water 1500m/s

[@NirajKumar-cr1ls]

Speed of sound in solid 6000m/s

[@unknowngamer5083]

@@NirajKumar-cr1ls really? It's in air

[@rinkudevi7825]

🙏Good morning 🙏

[@AR1DH18A]

Mam how the sound travels in bell and in pen when we blow inside it .it produces sound like Whistler

[@AR1DH18A]

Instead of no holes in it

[@AR1DH18A]

Mam please answer 😊🙂🙏

[@MrUpen2008]

@@AR1DH18A beta in bell electric energy is used to hit bell and vibration is produced... In case of pen sound is produced due to change in pressure of air by air blown by your mouth.

[@Fine.Dine999]

@@MrUpen2008 of

[@haiderzaman4474]

v v v tnxxxxxxxxxxxxxxxxxxx. you cleared my confusion of 10 years. amplitude

[@Mad--education]

Mam how the sound travels in Bluetooth speakers or headphones

[@SangitaDevi-gb8zc]

ooooo yes mam

[@idrishkhan2421]

Through a medium

[@InsaneCOD]

for example . if i am playing a music on the speaker through Bluetooth through my phone the phone will convert the sound frequency into electrical signals or radio signals and the speaker will receive it and decode the signal again into sound frequency

[@sciencetheknowledge7852]

@@InsaneCOD I agree

[@sadaanant450]

@@sciencetheknowledge7852 through air cause it is a mechanical wave

[@avinashkumar3160]

nice teaching maam like this

[@angelkhugsal6203]

Mam you teach so good...I have got 96% in my exam....before it was 79%...

[@nature_loves_]

Kyu jhoot bol rhe ho

[@gwadarsh6919]

Kyu bhi !!!!!!🤨🤨🤨😶😶😶😮😯

[@asharma8856]

Best teacher ever ☺️☺️☺️

[@erosentertainment5399]

Does sound travel in space?

[@glitchgaming3840]

No sound cannot travel in space because sound needs a medium like solid, liquid and gas but in space there is no medium. So sound cannot be heard in space

[@amaanfreefire1043]

@@glitchgaming3840 op bolte

[@savitabtigadi2292]

Tq mam

[@anime_sync7]

Mam explain how loudness depends on amplitude

[@rpdp7022]

when the amplitude is high sound is high when amplitude is low sound is low . i think it is correct bro........................

[@sruthishaji7790]

The loudness of sound depends upon ampitude.When the amplitude is very large, the sound produced is loud.When the amplitude is small,the sound produced is feeble..

[@ankitanand564]

Thank u so much Ma'am

[@akhtarhasnain7957]

Mam why are you not say the formulae of amplitude, time period and frequency

[@harshita5115]

Nice explained

[@MushtaqAhmad-xs8vf]

Thank you so much ma'am i understood it very well my all doubts are cleared 😊😊

[@MADMAX_2.0.]

Ma'am I cannot understand the wavelength

[@VedantuJunior]

Will make another video or please join vedantu app.

[@MADMAX_2.0.]

@@VedantuJunior thanks a lot ma'am

[@MukeshKumar-nc9zx]

@@VedantuJunior thank you

[@funvines7314]

@@VedantuJunior very good nice promotion of your app

[@FaisalKhan-dy5us]

mam you are the best teacher in vedantu app

[@purvisinghicute2392]

What is the speed of the sound in solids and liquids

[@virat9447]

1481m/s

[@ParasSharma_moonlight_]

You clears my all the daouts

[@Bhavyabhartii]

Mam you are sooooooooooo cuteeeeeeeeee 😍😍😍😍😍

[@madhusubhiksh9245]

Wow u got a 💓

[@santilatadas8811]

Mam i like the way that you speak ♥️🥰🤩

[@vandanavandana2778]

11:09 maam!!!!!😂😂😂😂😁😹

[@banditgamer4560]

0:53 video

[@Anuj_sehgal]

i was just having doughts in this but the way u taught has cleared all my doughts

[@vishnulavudya3160]

Tq mam 🤗

[@vamshikrishna9797]

ma'am what do u mean by meen(mean) position ?? and how could u place it on that graf??

[@MrUpen2008]

Please understand this concept by pendulum example and mean position is the place when Bob is at rest. In graph it indicate 0 position

[@sunandadhanke2213]

So sweet

[@simranpathak472]

Mam can you plz explain the working of ear

[@girijavenkataraman7846]

The vibration are absorbed by the outer ear and passed to the eardrum which is the middle ear and passed to the three bones namely anvil hammer and stirrup and then they are passed to the coiled tube called cochlea containing fluid and tiny hair projections which are very sensitive to sound vibrations. The auditory nerve then carries the vibrations and the sound vibrations are converted into electrical impulses to be carried to the brain.

[@Grace-vt3vw]

@@girijavenkataraman7846 Super explanation.Thank you 🙏

[@girijavenkataraman7846]

@@Grace-vt3vw no problem

[@padmajam2622]

Mam you are the best teacher...

[@sreelakshmipadiyar2145]

Thank you so much❤😊 man

[@bajrangilalgupta4703]

Amazing