Newton's Law of Cooling And also find Cooling Constant. |XII PHY Experiments| (Urdu/Hindi)

Рет қаралды 123,255

6 жыл бұрын

**Thanks Moeez Tariq for Readings
Objective: To verify Newton's Law of Cooling And also find Cooling Constant at 5th, 10th, 15th and 20th minutes.
Link for Graph ( • (Graph) Newton's Law o... )
Class: XII - PHY (Experiments)
Board: Sindh Board
Language: Urdu/Hindi for explanation & English for writing
XI - Physics (Experiments): [ • XI - Physics (Experime... ]
XII - Physics (Experiments): ( • XII - Physics (Experim... )
Let us know in comments your feedback, answer to questions asked in the video and further suggestion for the future topics.
Contact Info:
-Website: www.promotephysics.com
-Email: affan_414@live.com; affank414@gmail.com;
-Facebook Page: Physics with Khan M.Affan
( / phywithkhan )
-Instagram: khan.maffan
The whole idea of delivering these online lecture is to
-Provide a free facility to those students who might not have resources to engage with well known Expensive Physics Teacher
-Place a Conceptual Teaching Trend in Pakistan.
These lectures can also be delivered to those students who doesn't have internet facility (in Pakistan), if you know any of these students let us know, we will deliver them by ourselves.
Hope you enjoy doing Physics while watching these lectures.

Пікірлер: 102

@PujaDey77999 5 жыл бұрын

This video is really very helpful...thank you so much for this helpful video

@zeeshanharoonbaloch3817 5 жыл бұрын

Thank you very much sir for your videos. Keep it up 👌

@aribaqamar8258 2 жыл бұрын

Really very helpful 🙂.... Jazakallah🤗

@nitusingh931 3 жыл бұрын

Very helpful video! I've my physics practical (grade 11th) tomorrow. And this really helped. ❤️

@khan_affan 3 жыл бұрын

Hope you've done very well in Exam

@zahidali6222 11 ай бұрын

sir , thankyou so much jitna shukriya ada kia jaye kam hay ❤ Allah apko Ajr dein bohot

@mrunmayeeraorane4324 5 жыл бұрын

It's awesome...... Helped a lot 😇tq sir

@creativeartaak2927 Жыл бұрын

Thanks bro my practical is tomorrow and you helped me

@sujalsoni4953 Жыл бұрын

Thank you very much for this brother🙏🙏🙏

@user-fl9bw3ed8h 3 жыл бұрын

Thank you sir 😊

@misbah7531 Жыл бұрын

Thank you so much sir😊

@saadali6022 6 жыл бұрын

Ok thanks sir

@pranjalipandey5702 5 жыл бұрын

Nice and thanks

@sagarabbasi7702 3 жыл бұрын

Amazing video

@plantpathologist299 5 жыл бұрын

Thank u so much sir

@sabakhan-qc9di 5 жыл бұрын

Can u plz tell me that is it necessary to take out the "log" of (T h - T r ) as it's given in my manual ?? And if yes so what is the need of it as it seems useless ..hope i'll get my ans

@khan_affan 5 жыл бұрын

Log lengy to graph straight line ayega otherwise curve ayega... I would suggest waisay karein jaisay aap k manual me kaha gaya hai... Graph kaisa bana tha straight line ya curve?

@sabakhan-qc9di 5 жыл бұрын

@@khan_affan graph which i had make was curve, we had log column in the manual but we didnt gave tht much importance to it ,so that's why i had asked about the log thing that is that imp and whats the use .

@khan_affan 5 жыл бұрын

Do as it is written in your manual/journal

@sabakhan-qc9di 5 жыл бұрын

@@khan_affan ok thank u

@vsh155 5 жыл бұрын

Tysm 👌✌️🤙👌✌️👌🤙✌️👌👍🤘👍🤘👌✌️👌🤙👌✌️👌👌

@farajali1052 5 жыл бұрын

Best explanation

@Ma-lai-ka 18 күн бұрын

Pheli baar mujay samjh aya ☺💖👀sir apka jitna shujriya karen km he.. Kl mera final practical he bss ap ka channel na milta tw itna acha ankh na ataa 😷

@khan_affan 14 күн бұрын

Alhamdulillah...

@frankenstinhorror8970 5 жыл бұрын

Bhaijan kal physics practical hai boards ka Jaan bachali aapne

@sumankumar-nu9cf 5 жыл бұрын

Thanks

@maryamfatima2450 2 жыл бұрын

Very well 💯

@warzone5707 5 жыл бұрын

thanks

@tg.-thegreat123 5 жыл бұрын

Mujhe samajh me aa gaya ab

@AbhishekTiwari-or9oq 5 жыл бұрын

Best video

@relaxingnoise6135 2 жыл бұрын

Sir least count of thermometer and stopwatch Kya ha

@someonelivingsomewhere3777 6 жыл бұрын

thank you so much sir

@reshmamomin7699 5 жыл бұрын

Walaikumasslam

@vighneshchavan9226 5 жыл бұрын

Thank you sir it helped alot !

@almomen29 2 жыл бұрын

Walikumassalam warohmatullah.from bangladesh

@aynafaiz5933 2 жыл бұрын

Sir practical exam may circuit diagram banani hoti ha???

@bob-uk5xj 5 жыл бұрын

Nice

@MannanPrajapati1290 4 жыл бұрын

Sir coming 3 day I have practical of physics so sir plz help me out

@AMEERBASHAKINGOFSCIENCES 3 жыл бұрын

Assalamu alikum Excellent explanation Ameer Basha Assistant professor in physics Department of physics Silver jubilee government college Kurnool Andhra Pradesh India

@khan_affan 3 жыл бұрын

Walaikum Salam... 🙏🏽🙏🏽🙏🏽 These words❤️❤️❤️... I Can't express my feelings... Sir... 🙏🏽... Can't express my feelings ... Thank You so much, Thank You so much... Allahu Akber... ❤️❤️❤️

@ummeromaan9323 6 жыл бұрын

thanku sir byt yhi formula hoga hr college k liye?

@khan_affan 6 жыл бұрын

ummeromaan Yes Cooling constant ka yehi formula hai... Aap k pass jo book hogi usme bhi dekh lo yehi hai... Or BIEK k exam me to formula likha hua milta hai...

@drkalamaadharshila0005 5 жыл бұрын

Alpatmank kitna hoga

@khan_affan 5 жыл бұрын

Sorry main samjha nahi...

@freeckygammerz6463 3 жыл бұрын

@@khan_affan 👍

@areebaali3118 5 жыл бұрын

Sir water ko continuously stirr bhi karaya tha hamare college m?? Ye krna zaroori hota he kya?? Or stirr q krte he?? Sir please reply

@khan_affan 5 жыл бұрын

Jee blkul it is recommended to stirr continously... Stirrer is used to distribute heat evenly by convection...

@areebaali3118 5 жыл бұрын

Thanks

@alishbafayyaz9082 Жыл бұрын

Assalam alikum sir Jo ap nai 4th column me temperature of hot body find Kiya hai wo kaise Kiya he I cannot understand sir please explain kr dai

@khan_affan Жыл бұрын

وعلیکم السلام، آپ کس پوائنٹ پر کہہ رہی ہیں۔۔۔ 4:48 پر جو ویلیوز آئیں ہیں وہ تو اسی sequence میں لکھی ہیں یعنی شروع کے دس منٹ کے temperatures دوسرے کالم میں ہیں اور گیارہ سے لے کر بیس منٹ تک کے temperatures چوتھے کالم میں ہیں۔۔۔ جیسے جیسے پانی کا temperature کم ہوتا جا رہا ہے، وہ نوٹ کرکے ہر منٹ پر ہم لکھتے جا رہے ہیں۔۔۔ باقی اور تفصیل بتائیں آپ کس پوائنٹ پر کہہ رہی ہیں؟

@saadali6022 6 жыл бұрын

Sir cooling constant sirf observation table se nikal sakte hain q k mere college k manual men sirf "cooling constant from newton's law of cooling" likha ha graph ka mention nhi kia

@khan_affan 6 жыл бұрын

Yes it all depends upon given instructions... So at the time of experiment you can ask your instructor/internal examiner that do you have to find cooling constant from graph or from observations recorded...

@kamblevasant7223 4 жыл бұрын

@drkalamaadharshila0005 5 жыл бұрын

Alaptmank kitna hoga

@joraibban1873 5 жыл бұрын

yrr graph clear nai he

@khan_affan 5 жыл бұрын

Oho so sorry for that... try increasing the brightness of device and watch in 1080p. Hope this helps

@dharmrajdwivedi5613 4 жыл бұрын

Jai shree ram.. Badhiya Explanation h

@mitinamtali3134 Жыл бұрын

Log(t - t0) ko aise legha na sir 🙏🏼 t0 is room temperature and t is temperature

@upendrakumarsethi4625 4 жыл бұрын

In which graph is drawing either graph paper or simple paper

@khan_affan 4 жыл бұрын

Graph paper

@upendrakumarsethi4625 4 жыл бұрын

@@khan_affan thanks

@twinkalkukda6301 2 жыл бұрын

Sir. Brobr dist nhi ahe n

@rohitkhune7702 5 жыл бұрын

Thank u sir

@rachnasaxena8834 4 жыл бұрын

He-assalamewalekum Me-har har mahadev #india unity in diversity

@geetugautam9010 5 жыл бұрын

*thank's*!

@arsheenjawaid2645 5 жыл бұрын

sr why u have started the timer at 70 °C cant we start it at other temp?

@khan_affan 5 жыл бұрын

Actually this is the most appropriate temperature to observe... This experiment shows consistency in the fall of 40°C... Agar us se ziada temperature ka change ayega to experimental error aajatay hain... If suppose I start timer at 85°C... And the final temperature is say 42°C... Then ΔT would be 43°C... Which is inappropriate for good results... Or agar if I start at say 65°C and final temperature then comes out to be 40°C in 20 min then ΔT=35°C that is still allowed but graph acha nahi banega qk temperature fall honay ka rate kam hota jata hai to values bohat qareeb qareeb hongi... Isi liye we chose 70°C is se final temperature ka change less than 40°C bhi hota hai and itni unique values bhi hoti hai k graph acha ban jaye

@khan_affan 5 жыл бұрын

I hope answer clear hoga... But still if there is any confusion you can discuss...

@arsheenjawaid2645 5 жыл бұрын

Khan Muhammad Affan thanks sr

@joraibban1873 5 жыл бұрын

graph bhi bna dena tha

@khan_affan 5 жыл бұрын

Arey don't worry... We have also uploaded a video that describes how to draw graph, here is the link kzfaq.info/get/bejne/qqqGdKh1ltS8dp8.html

@zoyaahmed9869 5 жыл бұрын

Or Tr k Kiya mtlb h

@bluepanda1232 5 жыл бұрын

It’s rewind time...walaikumassalam

@muhammadshahzainasif6156 2 жыл бұрын

Sir room temperature 27 ho ya kuch ur yeh kese pata chalega?

@khan_affan 2 жыл бұрын

Thermometer...

@muhammadshahzainasif6156 2 жыл бұрын

To clear, paani ko jab 27 C tak garam karenge phir usko calorimeter me dalenge(meaning hot water) right?

@khan_affan 2 жыл бұрын

@@muhammadshahzainasif6156 Nahi nahi, 27 to room temperature hai, empty calorimeter or thermometer hum ne pehle place kardiye, room temperature note kiya or kisi electric kettle waghaira me ya stove pe paani garam kiya (apnay hisaab se, jisay aap k saktay hain theek thaak gharam karliya) or phir us garam garam paani ko empty calorimeter me daala, obvious si baat hai wahan jo thermometer rakha hai jaisay hi uspe garam garam paani ayega usko temperature barhay ga... see video again, suggestion will clear everything...

@muhammadshahzainasif6156 2 жыл бұрын

last Q, thermometer ko tang kie bagair usne room temperature calculate karlia whether calorimeter me put karne se pehle ho ya baad doesn't matter right? Jazakallah khair! for the help...

@khan_affan 2 жыл бұрын

@@muhammadshahzainasif6156 Jee Jee, jab thermometer table per rakha hoga tab bhi wo room temperature bata raha hoga... calorimeter k saath hang karengy tab bhi room temperature hi bata raha hoga... Haan jab hot water daalein gy tab temperature rise karega... You are right... Good Luck...

@zoyaahmed9869 5 жыл бұрын

Sir ye Th ka mtlb Kiya h

@khan_affan 5 жыл бұрын

Th = Temperature of hot body Tr = Room Temperature

@zoyaahmed9869 5 жыл бұрын

Thanks

@zoyaahmed9869 5 жыл бұрын

Room temperature hame kaise pta chale GA sir?

@hunainaghai3342 5 жыл бұрын

Room temperature waise laboratory mein usually likha hua hota hai.

@zoyaahmed9869 5 жыл бұрын

@@hunainaghai3342 acha

@hunainaghai3342 5 жыл бұрын

@@zoyaahmed9869 just check the Temperature before starting the experiment that was the room temperature

@zoyaahmed9869 5 жыл бұрын

@@hunainaghai3342 thermometer pr?

@hunainaghai3342 5 жыл бұрын

@@zoyaahmed9869 jee thermometer par

@dharmrajdwivedi5613 4 жыл бұрын

NYC explained but not so much best..

@khan_affan 4 жыл бұрын

Hope we could do it in future... Thanks for watching... If you found it helpful then share it with others...

@KING_AARAV_SINGH_RAJPUT 5 жыл бұрын

Social site h assalam bolte ho to namaste v bolo haramo

@ajaygamingyt8739 4 жыл бұрын

I watching this before exam hit like

@n1rmalplayz985 4 жыл бұрын

I hit dislike 😘😘

@ajaygamingyt8739 4 жыл бұрын

@@n1rmalplayz985 yours wish

@babyyoda1988 3 жыл бұрын

real experiment to kar leta

@khan_affan 3 жыл бұрын

Apparatus nahi tha...

@thuggamers9367 5 жыл бұрын

Ek dam बेकार वीडियो

@durgaprasadsuryawanshi8155 5 жыл бұрын

Jay shree ram

@muhammadrehan624 5 жыл бұрын

Thanks