Grade 8 | Science | Sound | Free Tutorial | CBSE | ICSE | State Board

[@gundakarthikeya422]

Your animation and explanation is the best 😊😊😊

[@nachiketdorke3695]

Legends are watching before the exam😂

[@Onepiece_ne3]

Dude it true

[@Onepiece_ne3]

Current I am one of the legends

[@dineshverma2541]

Actually 😂😂

[@shlokjaiswal2000]

Everyone is watching before the exams only How can the person watch after the exam😎😎😎

[@s.j.prithivika504]

😂😂🖐

[@sakthidevi3892]

Sir, 09:33, For human ears, the range of audible frequencies is roughly from 20 Hz to 20,000 Hz sir. The sounds above 20,000 Hz are called ultra sonics. But you have written it as 20 Hz to 2,00,000 Hz. Only dogs and whales can hear those sounds sir. You can edit that point alone sir ..

[@ManpreetKaur-nf7hp]

madam one 0 is extra that can be ignored

[@sweetsisterskkrm8773]

Yes you're right

[@The_wild_heart_guy]

I agree it is a mistake in typing

[@The_wild_heart_guy]

@@ManpreetKaur-nf7hp adding of one 0 changed the complete value.. It becomes 2 lakh...now see the comparison between 2 lakh and 20 thousand...

[@The_wild_heart_guy]

@@sweetsisterskkrm8773 u r wrong

[@lohithsailohith4401]

Wow what teaching. Its helpfull

[@Shreyash311]

Sir, the explanation was good and useful I like it........☺️

[@MataJi-ko3ox]

Thankyou sir! You teach us in a way that we can understand everything clearly! ✨✨❤️

[@instyn]

Hi Mata Ji, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@dhanajishinde7060]

Nice

[@gundakarthikeya422]

I want to say this mistake at 9:36, A human ear can hear sound from 20 to 20,000 hz only but sir you have kept 20 to 200000 hz, this is a big mistake which even costs 1 mark or 2 marks or maximum 5 marks, plz update it

[@umasankari5356]

S plz change it

[@likith4826]

@@umasankari5356 fuck

[@LalitKumarSaini]

Hi Sir, the explanation was good!! ✌ But, there wasn't any information given about the types of music instruments as in the NCERT Book...

[@Rohith006-h3r]

Nice explanation 😀

[@englishachieverschamps]

Concise andbest explanation

[@rooparamesh6833]

Amazing sir , nice explanation .

[@kanishkapratapbirajdar8579]

Nice teaching all concepts are cleared

[@dhanalakshmielan8518]

That🎉is a good explanation sir thank you

[@instyn]

Hi @dhanalakshmielan8518, Thank you for the words of wisdom. We provide extra help through teachers at free.instyn.com

[@instyn]

Hi @dhanalakshmielan8518, Thank you for your feedback. We provide instant doubt solving and live classes at free.instyn.com

[@r.triddhik7618]

Sir you are best science teacher in the school 👍🏻👍🏻

[@instyn]

Hi ꧁༺M10 DE꙰V꙰I꙰L꙰★᭄ꦿ᭄ꦿ, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@reyanshgupta6562]

thank you sir

[@instyn]

Hi REYANSH GUPTA, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@yuvedhainfo6204]

Your explanation is helpful for me

[@mgnarayan5033]

What is the name of person who creates this? Very nice❤❤

[@instyn]

Hi @mgnarayan5033, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@instyn]

Hi @mgnarayan5033, Thank you for your feedback. We provide instant doubt solving and live classes at instyn.in/help

[@samiranofficial7530]

Congratulations 🎉 For 100K

[@RINJUBIJU-jd9ec]

Very good i liked the video and watched everything and understood everything best channel ever

[@instyn]

Hi RINJU BIJU, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@instyn]

Hi RINJU BIJU, Thank you for your feedback. We provide instant doubt solving and live classes at instyn.in/help

[@anayadevrani3120]

Thank you very much........ I understood all the concepts in just 10 minutes..........u explain the best........

[@instyn]

Hi Anaya Devrani, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@IloveuAllah-sp8ek]

This is more better than my science teacher explain i really hate my teacher she will always ask me question. Am not telling that she should not ask but wantedly when I was absent on that day whatever she explained i need to say what is this 😔

[@instyn]

Hi Iloveu Allah, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@akshayvivekanandan5681]

I learnt this lesson easily

[@ChandraChandra-si2bb]

Thankyou so much for your teaching 😊

[@instyn]

Hi Chandra Chandra, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@Anand-mishra2008]

You teach good

[@instyn]

Hi @Anand-mishra2008, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@instyn]

Hi @Anand-mishra2008, Thank you for your feedback. We provide instant doubt solving and live classes at instyn.in/help

[@annandashdairies7543]

Good explanation sir

[@Gaming-dance]

Ya❤

[@instyn]

Hi MASTERY CHINNU, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@ShwetaKumari-ku2yn]

Thank you so much sir it was very much helpful

[@instyn]

Hi Snainya Sinha, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@VAIBAVIuu]

Nice explanation sir 5:26 thanks i can understand

[@instyn]

Hi Vinya Vaibavi, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@instyn]

Hi Vinya Vaibavi, Thank you for your feedback. We provide instant doubt solving and live classes at instyn.in/help

[@saan_tae_kim7710]

Legends are those who take phone for studying and play free fire at that time and copy in exam hall🙌🏻😂

[@instyn]

Hi Saan_tae_kim, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@jagannathus1592]

😂😂

[@mythologyfragrance6626]

Very well explained.

[@aadyatripathi-su2vr]

God students learn before one day of exam 😂

[@instyn]

Hi @aadyatripathi-su2vr, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@kapil4670]

sir ur video is very suii

[@instyn]

Hi KAPIL, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@vanshitaagrawal5709]

Very helpful 🎉 but can work on animations 😅

[@instyn]

Hi Vanshita Agrawal, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@shabnam606]

00:05

[@dushyantsivakumar3737]

Heads off sir

[@instyn]

Hi Dushyant Sivakumar, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@jayaramjayaram3015]

good

[@instyn]

Hi @jayaramjayaram3015, Thank you for the words of wisdom. We provide extra help through teachers at free.instyn.com

[@instyn]

Hi @jayaramjayaram3015, Thank you for your feedback. We provide instant doubt solving and live classes at free.instyn.com

[@MALLIKARJUNAMUDHOL987]

🎉🎉so nice and i have understood all

[@instyn]

Hi MALLIKARJUNA MUDHOL 987, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@instyn]

Hi MALLIKARJUNA MUDHOL 987, Thank you for your feedback. We provide instant doubt solving and live classes at instyn.in/help

[@memesnbattles3422]

👍👍👍👍👍👌👌👌👌👌

[@T-R-A-V-E-L-E-R-1987]

👌 👍 Best

[@shubhamverma5899]

why we hear loud soud in night some pair to day

[@anayadevrani3120]

as there are less vibrations produced during night as compared to the daytime.

[@mairajkhan5424]

What is sound definition

[@b7zma.x503]

Sound is defined as vibrations that travel through the air or another medium as an audible mechanical wave. It is produced from a vibrating body. The vibrating body causes the medium (water, air, etc.) around it to vibrate thus producing sound.

[@HRUDHAYSAI-se4pd]

❤

[@instyn]

Hi HRUDHAY SAI, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@drsandeepbodke4942]

Tq for u'r guidence

[@instyn]

Hi Dr sandeep Bodke, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@MSB_394]

Good work 👏

[@BasuRB-vt7jl]

Your explanation is very good but you made a mistake in this video in the summery that is the audible sound is 20Hz to 20,0000,Hz ,,,,but the answer is 20Hz to 20,000Hz

[@instyn]

Hi Basu RB, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@instyn]

Hi Basu RB, Thank you for your feedback. We provide instant doubt solving and live classes at instyn.in/help

[@AisswaryaKalaiselvi]

i like the class

[@instyn]

Hi Aisswarya Kalaiselvi, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@shilpasingh3289]

3:12

[@instyn]

Hi @shilpasingh3289, Thank you for the words of wisdom. We provide extra help through teachers at free.instyn.com

[@diganth--748--]

Thank you it is nice but not so much use full

[@instyn]

Hi @diganth--748--, Thank you for the words of wisdom. We provide extra help through teachers at free.instyn.com

[@instyn]

Hi @diganth--748--, Thank you for your feedback. We provide instant doubt solving and live classes at free.instyn.com

[@binitasarki4749]

😊😊😊😊👍🎂🎂🎂🎂🎂👍👍

[@instyn]

Hi Binita Sarki, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@spsgamingxd2007]

Grade 8 friction?

[@moviesmazza607]

in 9:37 min you keep 20 to 20,0000 hz that is 20to 20,000 hz

[@DEVENDRASINGH-mv1fr]

Mast ha

[@instyn]

Hi DEVENDRA SINGH, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@msgiridhar2718]

thanks Sir😃😊😊

[@instyn]

Hi MS Giridhar, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@instyn]

Hi MS Giridhar, Thank you for your feedback. We provide instant doubt solving and live classes at instyn.in/help

[@Ldlolrulerdevil]

👍👍👍👍👍

[@instyn]

Hi Brawl (K2B fan), Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@p_m_h124]

Best

[@chekuripavani]

Sir are have app

[@gajalakshmimaradana3664]

😂😂😂😂❤

[@instyn]

Hi gajalakshmi maradana, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@Im_zero000]

For time pass because I am top In this chapter

[@instyn]

Hi @Im_zero000, Thank you for the words of wisdom. We provide extra help through teachers at free.instyn.com

[@Im_zero000]

My exams are ended Now I'm waiting for results

[@rummanpatel6699]

its no "instyn" its "Einstein".

[@instyn]

Hi Rumman patel, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@sureshrai5056]

Nice😍😍

[@saranyadhandapani3287]

Even me before exam

[@instyn]

Hi Saranya Dhandapani, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@VAIBAVIuu]

Legend are watching before the exam

[@instyn]

Hi Vinya Vaibavi, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@vinodjyothi2403]

I am having an exam today and the time is 6:24 am

[@instyn]

Hi Vinod Jyothi, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@supratapsingha4253]

There is only one mistake you have done sir i.e. while teaching infasonic sound you did not show any presentation for that.

[@instyn]

Hi Supratap Singha, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@destim_]

Watching to showoff in the class, before they teach in class 👇

[@instyn]

Hi @destim_, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@destim_]

Yea, just kiddin

[@destim_]

I'm doin a presentation in school

[@suthakarkanchanasuthakarka5533]

Iam a legend😂😂

[@instyn]

Hi @suthakarkanchanasuthakarka5533, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@jasssnoor9045]

Kal hi hai exam😂

[@instyn]

Hi jasss noor, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@bneeraj4541]

Change your dialogue bro

[@instyn]

Hi B Neeraj, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help

[@gwpraneeth7119]

waste

[@0P_VEGETA]

Explain

[@munugapatisuvarna5425]

I didn't understand a thing ye kya he

[@armanomkarpadhi3118]

What you didn't understand?

[@gametriangleyt8411]

English me hai isilye na?

[@r.triddhik7618]

This video is helpful for us😊

[@instyn]

Hi ꧁༺M10 DE꙰V꙰I꙰L꙰★᭄ꦿ᭄ꦿ, Thank you for the words of wisdom. We provide extra help through teachers at instyn.in/help