Best Mcq Sound || Class 8 Science Chapter 13 | CLASS 8 SCIENCE CHAPTER 13

[@mcqncert]

For other Chapter MCQ of Class 8 Science, watch playlist in link below MCQ CLASS 8 SCIENCE NCERT: kzbin.info/aero/PLqL8x8BtIUaQcQgnfdyo8iFlyw-SZ-160

[@avnish7015]

Thankyou sir

[@freedaabdul3152]

Thank you sir

[@v-logging420]

sir aap bhut hi achhe teacher ha,,, sirf 1 student ke liye aap question repeat karte ha,, may god bless you with more and more Subscribers

[@sriramamla7875]

Kha kiya? 🤨

[@nehathegirl3618]

@@sriramamla7875 18:25

[@rakhirawat1208]

@@sriramamla7875 question 24 dekho

[@teramitex_ultronium9680]

Chup Beth nahi to bat ka grip nikalke bat tereme ghusa dunga

[@funwithaz.8573]

1 - sound 2 - vibration 3 - Ektara 4 - jaltarang 5 - Larynx 6 - Voice box 7 - medium 8 - vacuum 9 - outer ear 👂 10 - eardrum 11 - eardrum 12 - eardrum 13 - inner ear 14 - all direction 15 - eardrum 16 - Frequency 17 - Hertz (Hz) 18 - 20 (Hz) 19 - Amplitude 20 - Decible (db) 21 - 80DB 22 - feeble 23 - Frequency 23 - Frequency 24 - between 20 Hz to 20000 Hz 25 - Infrasonics • Dogs 🐕can hear sound in between of 67 Hz to 45000 Hz 26 - Noise Ncert question answer 1 - solid , liquid , gas 2 - man 3 -(a)- true (B)- false (C)- false (D) - true (E) - false (F) - false (G) - true 4 - fill in the blanks (A) - time period (B) - Amplitude (C) - Hertz (Hz) (D) - Noise (E) - Frequency 5 - F = I/ t = F = 40/4 =10 Hence , time period = 1/f T = 1/10 6 - Dholak 7 - Frequency = 500 Time period = 1/ f= 1/500 8 - (1) - (c) = 1 ,2 ,3 (2) - (a) = Amplitude (3) - (d) = 1,2,4 (4) - (a) = 0.02 s (5) - (c) 6 - decible 7 - Amplitude 8 - 1 vibration per second 9 - Frequency 10 - above 20000 (Hz) 11 - Frequency = 10/20 =0.5 Time period =1/0.5= 2second.

[@kavyadalam1121]

20.decibel ((dB))

[@PawanKumar-xi9gs]

Kya pagal wagal h kya🤣🥴🥴

[@AlishaKsdhdhdh]

❤❤❤❤❤😊

[@adgaming4843]

Really appreciate your work ❤

[@prem9039]

OH ACHCHHA

[@AAMIRSABA-p6v]

❤️ Natural beauty A brilliant hearts 💕

[@nikhilchoudhary5469]

Yes

[@vansh7582]

Haa setting kr lo no 87450997??

[@bimlendubimal4610]

Sir wavelength means the length between two crest or two trough is called wavelength. Sir am I right or wrong.

[@mcqncert]

Consecutive crest or trough

[@PruthviRajChauhan-fg6si]

Hi sir

[@JunaidQureshiJunaid-z4v]

Sir i am thank ful of you you are brilliant teacher ❤❤❤

[@mcqncert]

It's my pleasure

[@AAMIRSABA-p6v]

*Subhan Allah Sir yadi amplitude large hai to sound or voice loud hoga Speed of light 3 likh km per second and speed of sound in medium no vaccum 340 meter per second*

[@PreetiVerma-bo2ss]

Thanks sir ji 🙏💅🙏💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅💅🙏🙏💅🙏🙏💅🙏💅💅🙏🙏💅🙏🙏💅💅🙏💅🙏💅💅🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏💅🙏🙏💅🙏💅🙏💅🙏💅🙏

[@radharamansahu8883]

Many many thanks to u sir you r very good teacher....

[@Prince-de5px]

I am very thankful😊😊😊 to u.. 🙏🙏👍👍⚡⚡

[@AAMIRSABA-p6v]

👇🏻 *Subhan Allah , Alhamdulillaah , Allah hu akbar*

[@CRICAKASH1.1]

0.002 second question number 7 book ka b

[@anilkumarlodha4308]

Sir you are very great teacher

[@mcqncert]

Thanks subscribe and share

[@anilkumarlodha4308]

Sir apki live class ki link bheje apki video me sab ache se samaj aata hai please 🙏 sir aap live class me mujhe bhi join kare

[@mcqncert]

@@anilkumarlodha4308 its always posted on community page..

[@dixitmahima_]

When amplitude of vibration is large the sound produce is loud.

[@goldengold1976]

Loudness × Aptitude 👍🏻

[@PankajSharma-gt9ll]

Sir I am preparing for tomorrow exam from this video .... I got too much help from you sir. Really you are very nice teacher... May you live long ...

[@mcqncert]

Thanku beta.

[@farhanjawed4774]

amplitude will be large then produced sound will be soft a i right

[@artbypari8399]

@@farhanjawed4774 if amplitude will be large then sound will also large

[@Ishika_x_musicworld]

Thank you sir tomorrow is my science half yearly exam ..your videos help me a lot to prepare myself 🙏

[@mcqncert]

All the best

[@Edensworldinroses]

Sir you teach very well may god bless you

[@nandinibaraik605]

6. Voice box 7. Medium 8.vacuum 9.outer 10.eardrum 11.eardrum 12.eardrum 13. Inner 14.all 15. Eardrum. 16. Frequency 17.hertz 18.20 19. Amplitude 20.Decibel 21.80 22.feeble 23.frequency 24 c 25. Infrasonic 26. Noise 27.

[@PawanKumar-xi9gs]

26:58 if the amplitude is large the sound produce loud😝

[@krishndavkasoudhan2199]

7) 0.002 answer

[@bhavyajain8315]

Vibration Ekatra Jaltarang Larynx Medium Vacuum Outer eardrum Eardrum Eardrum Inner All Eardrum Frequency

[@utkarshsolanki7047]

Sir you are a great teacher 👩‍🏫👩‍🏫

[@utkarshsolanki7047]

Sir please reply me

[@utkarshsolanki7047]

😔😔

[@mcqncert]

Thnku beta...

[@utkarshsolanki7047]

@@mcqncert thanku sir 🌺💐

[@gamervolt4372]

Q.7- ans - Wings vibrate 500 times in 1 second so frequency is also 500 now we have to find time period so we use its formula which is T = 1/F = 1/500 equal to 0.002 seconds, so the time priod is 0.002 sec. (Pls pin if my ans is correct)

[@artbypari8399]

Yes your answer is correct

[@aryankuamr8093]

1)d

[@HarshKumar-k3b]

Thank 😊

[@Veeraj-rajveer]

Very Very thank you sir

[@dxmomin2204]

C options questions 26

[@techgaming3532]

Thankyou sir you help us very much

[@abdullahshaikh8881]

33:50 0.002 seconds is the answer

[@teramitex_ultronium9680]

8:05

[@sanjutank-qj7yd]

16) frequency

[@kanishkchoudhary9992]

35:42 speed of light is 299792 km per hour

[@mcqncert]

Yes

[@kanishkchoudhary9992]

@@mcqncert waa sir , 4 months purane video ke comment ka reply kiya aapna🙏🙏🙏

[@SharmaSonam-ff7wq]

Sir geography ka ch2 ka MCQ ki video bana do ❤

[@shiwshankar1532]

Thank you so much sir 😊

[@Prince-de5px]

Sir app Mcq ke liye best hai but untold concept best hai full concept ke liye in easy way

[@mcqncert]

Share with your friends too..

[@poornimaviveksinghthakur7482]

If amplitude is more the sound is Shrill

[@kisan1254]

Hey

[@krishndavkasoudhan2199]

When larger amplitude is LOUDNESS

[@Satyam2608]

20000 hz

[@SwetaKumari-fj3vj]

Hii sir

[@cghssarojininagarphc8200]

Sir are you teaching live to students

[@mcqncert]

Yes

[@alizamughal5016]

very informative lecture

[@mahendrachaudhari8484]

Sir aap jab bhi live hone vale hoi to plz time kah dena 🙏plzz

[@mcqncert]

Its posted on community box

[@abhishekgiri8895]

Sir please 5 se 6 din pehle hi Bata diya kariye Please

[@abhishekgiri8895]

@@mcqncert please sir

[@mcqncert]

@@abhishekgiri8895 ok

[@diyamaheshwari7055]

0.002

[@shabirkhan7597]

Thank you sir❤

[@AAMIRSABA-p6v]

💜

[@survinaraharigoud]

Hlo sir what lesson are there for final

[@Next.Topper7753]

0.002 question 7

[@shreyasharma8716]

Sir can you plz tell me that if thr sound is ultra sonic which animals can hear it.. Below 20HZ

[@official_rachit]

Dog can hear

[@danishreza4311]

Subhan Allah.

[@rishiofficialff1441]

26 question answer is noise

[@nandameena980]

0.002s....😃

[@navjotbabbar9772]

Very nyc video .. no time waste great work sir

[@VIKASHGUPTA-b8e]

Thank sir doubt clear ho gya 💫

[@prem9039]

33:47 answer is 0.01/5

[@saritatoppo1833]

Very good teacher

[@prem9039]

30:05 sir aap bahut achchha padate ho par aap galtia bhi bahut karte ho please galtia thoda km kijie

[@goldengold1976]

Whats the mistake

[@sumairarashid2257]

Thnx sir 👍😃😃

[@bhavyapatidar4350]

d true

[@gamechangerarmy1k537]

Thanks again 😊

[@YogeshSharma-ee2sw]

Sir what is the difference between hertz and decibel ?

[@priyanshu39_q]

I love your video Sir

[@aryankuamr8093]

5)10 Hertz

[@sanjutank-qj7yd]

14) all

[@smallboyvolleballplayer9753]

Sara sahi hai sir do galat ho gaya hai aap samjhaye hai to samaj aa gaya hai thanks sir❤❤❤❤❤❤❤

[@mcqncert]

Good share with your friends too..

[@aryankuamr8093]

Thank you so much sir

[@mcqncert]

Most welcome

[@GauravSharma-j5w9t]

0.02s

[@bestbhojpurisong6173]

Aap bahut acha padhate hai thank u sir please mujhe science chapter 9 padhiye

[@bestbhojpurisong6173]

😍😍😍

[@drkamleshpatel5755]

Thanks you sir

[@phooloyadav61]

🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍👍🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍👍👍🙏🙏🙏🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍👍👍👍🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍👍👍👍👍🙏🙏🙏🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍👍👍👍🙏🙏🙏🙏🙏🙏🙏🙏👍👍👍🙏🙏🙏🙏🙏🙏🙏🙏👍👍👍👍

[@chanchalsstudycentre3375]

If the amplitude is large than sound is loud

[@sonikumari3313]

Sir mujhe NCERT ke questions number 5 me doubt hai pendulum hai jo 1 second me 10 uski frequency 10 Hertz hai to 4 second me to 40 Hertz hoga please clarify my doubt

[@dxmomin2204]

Sir are you teaching live to students ❣️❣️

[@yashchahal8056]

Sir aap bahut accha padate ho ❤

[@nargisshafi1730]

I know oll of them but sir thanku for this information sir superb explanation

[@aryankuamr8093]

3)True

[@priyanka4313]

Ans 1 Sound

[@Nimeshkumar-hv7wu]

Sir aap class 9 ko bhi padhata hai kya

[@mcqncert]

Yes

[@shikharsanadhya100]

Hello Sir

[@gajenderyadav1793]

Jal trang

[@aryankuamr8093]

Noise

[@AAMIRSABA-p6v]

💜 Subhan Allah.

[@AAMIRSABA-p6v]

@@ibrahim-uh8ye Masaallah

[@AAMIRSABA-p6v]

@@ibrahim-uh8ye ALLAH HU AKBAR .

[@bhojpuriyaraja3412]

Amplitude large to sound is loud

[@akkireddyrajitha409]

In which school are you working

[@_GHOST177]

26 Noise

[@DipaBiswas-k6e]

Sir what is mean by inaudible sounds

[@warewolves3034]

The sound which is not heard by humans. ( Less than 20hz or more than 20000hz)

[@rekhainsha7352]

Sir enn ki pdf mil sakti ha questions ki I need it plz sir reply me

[@gauravvrma00]

Sir you are exillent teacher

[@v-logging420]

sir aapki live streaming ka time kya ha please bata dijiye ga,,, class 8th and 9th ke liye

[@gohardarakshan8193]

Yes sir please

[@AkshayKumar-gq7qk]

😎😎😎

[@AkshayKumar-gq7qk]

😎😎😎

[@AkshayKumar-gq7qk]

😎😎😎

[@AkshayKumar-gq7qk]

😎😎😎

[@AkshayKumar-gq7qk]

😎😎😎

[@AkshayKumar-gq7qk]

😎😎😎

[@mirjakhan8772]

0.001

[@deepikagupta1328]

Sir 24th question me to me do t hai

[@DeepakKumar-qn9qn]

Sound

[@sanjutank-qj7yd]

17) hertz

[@amanmalik8366]

2nd MCQ ka answer oscillation ni aega

[@Udhavbansal1]

noo

[@sanjutank-qj7yd]

7) medium

[@rehanarehana4911]

Sir when amplitude of vibration is large thn sound is produce louder.

[@mcqncert]

Yes

[@akkireddyrajitha409]

Sir what is your name

[@goldengold1976]

1/500 = 0.002 sec answer 😊

[@navnathbargaje7398]

a

[@Lifechanger-c9h]

Q7 ans. 0.002s

[@its_anshu.ydv125]

Thanku sir