39:30 this is very long and lengthy method sir if you just do wavelenth in water = wavelength in air / refractive index of water then you will get your answer kyuki agar air mai agar wavelenth lembda hai too kisi medium mai jakar uska wavelenth lembda/ refractive index of that medium hojayegi and IN 1:07:00 agar sir app yahan pr net intensirty = i1 + i2 + 2√i1i2 cos(fie) ka formula use krte too humee approximate krne ki jarurat nhi padti and jaldi bhi solve hojata kyuki cos(pie/4) = 1/√2 hojata and we know young double slit experiment mai i1=i2 hota hai hence sir apne lengthy method use kiya hai wapas dono questions mi
No the formula is correct he used the destructive interference formula of diffraction here because u need to get the distance of the x value till the first destructive interference it's how we also derived width of central maxima
1:28:42 sir yeh ques diffraction ka hai yaha pe hum diffraction wala formula X = (2n+1)LAMBDA/2a wala formula lgayege to fir width 5 mm aa jayegi pls correct it
Not wrong, he divided the speed of light 3x10^8 by the refractive index of water which is 4/3 which gives the speed of light in water. (v = c/RI (water))
Pyqs series is giving me confidence to do nums till now i was able to solve only theory derivation now i could do some nums hope after completing all videos of pyqs and theory videos i could do all questions 😊
Sir if i score 60+ in my physics boards exam , then all the credit goes to you!!! Because you're always consistent from the starting of class 12th and provided us with the best content. Thanku so much sir ❤ 🙏🏻🙏🏻
Sir 19 ve questions me humne nth bright ke liye tu (2n+1)Dlambda/2d ye padha tha tu apne ish questions me ydse ka formula kyu lagaya kyuki yu tu single slit experiment h
Sir i am seriously saying that ki aapki video dekhe Bina mere me confidence nhi aata.... and jab me aapki pyq series kar leta hu na uske baad i am fully prepared for by exam so..... Thank you so much sir for your all efforts 😊😊❤️❤️❤️❤️❤️❤️❤️❣️
Because wavelength changes with the medium. The solution Sir had given is quite complicate you can simply divide the wavelength by the refractive index of the given medium because we know that wavelength changes with the medium. You can use this formula as well, New wavelength = Given wavelength/ refractive index of the medium. Hope I'm able to make you understand. :)
@@VERMAISLIVE bhai Mera toh syllabus khatam abb tum apna dekho😂.....mai confirm karta hu logo se ki mai itna fast kar rha hu...or dusre log ka comment 1month pahle ka kaise
both cases are correct (2n+1) and (2n-1) coz both cases mai odd no aata hai, but for such questions consider taking (2n-1) bc for this case n=1, 2,3 but for (2n+1) n=0,1,2,3 toh agar youre taking the latter which is (2n+1) make sure to reduce the value of n by 1 kyunki is case mai we also take in account the zero. in short , (2n-1) le rahe ho toh n ki value wahi rakho jo question mai hai and agar (2n+1) le rahe ho toh n ki value mai se 1 subtract karke daal lo. hope that helps
48:46 sir ish question mein meu 2 ko rarer hona chahiye n kyunki meu 2 > meu 1 that is given in question and humne previous questions mein bhi Kiya hai ki jo greater hai wo rarer hai so please explain this to me sir or anyone ...., a confusion is there
Nhi friend , ye formula yaad karne ki jarurat nhi haii , pahle aap path difference diya haii usse phase diference nikalkar, fir I net me rakh ke I ki value nikal lo , phir I / I Max krdo
@@snehapaul12125 its the same thing,in case of 2n+1,for the third fringe for example, the solution will 3.5 lemda,then your answer is 3rd fringe ......but in the case of 2n-1 lemda/2,for 3rd fringe,the solution would be 2.5lemda,then we have to conclude that our fringe would be 3rd one [in case of ydse destructive interference] you can use which every expression you want to,but 2n-1 is kinda recommended
@@yadavji2020 sir ke one shot of waveoptics mei sir ne btya ha jb bhi ratio pucha jayein yeh wla formula lagate hai kyuki fir wo undefined kind of hojayegaaa
@Ayushi_.072 according to me in past few years cbse is making a great level of conceptual questions in board exam main focus of cbse is on students clarity towards topics and in other side isc is on its same pattern so cbse is more tough acc to my experience of class 12.
Sir in 1st question with frequency, energy carried must also be answer becoz u give reason in question 2 that eng. Depend upon frequency so it will also not change
Sir m y PYQ series follow kr rha hu aur jb ap questions karwate ho tb questions apne ap attempt krta hu To Mera doubt y h ki yhi PYQ SERIES sufficient h y phir jo dusre teacher sure shot -numerical ki video lekr a rhe h unko bhi kru? Plz tell me sir ur reply is very helpful to me ❤❤
Sir aap padte to super se upper ho par hame na 😂😂 boards ke paper ke hisaab se padao in sabh ke hisaab se hame smjh nhi arha bilkul boards paper ke hisab se padao sample paper vagera ko chod kr 😂😂😂 please sir please sir please sir please sir please sir please sir please sir please
Sir kuch sample provide kar dijiye ya phir aap khud solve karva dijiye sir pls because time' management me problem ho Rahi hai pura paper solve nhi ho pata time par
39:30 this is very long and lengthy method sir
if you just do
wavelenth in water = wavelength in air / refractive index of water
then you will get your answer kyuki agar air mai agar wavelenth lembda hai too kisi medium mai jakar uska wavelenth lembda/ refractive index of that medium hojayegi
and IN 1:07:00 agar sir app yahan pr
net intensirty = i1 + i2 + 2√i1i2 cos(fie)
ka formula use krte too humee approximate krne ki jarurat nhi padti and jaldi bhi solve hojata
kyuki cos(pie/4) = 1/√2 hojata
and we know young double slit experiment mai i1=i2 hota hai
hence sir apne lengthy method use kiya hai wapas dono questions mi
Bhai ye second wala thoda clear btade bdiya asan ho jyega🎉🎉
2nd part me tumhara wrong concept h....
Exactly maine within 15 seconds me kr diya tha 1st wale ko😂
1st method ke liye thank you bhai
1:32:34 sir yha to diffraction ka formula lagana tha but aapne YDSE wala lga diya h...jbki dono k width me kaafi difference hota h
No the formula is correct he used the destructive interference formula of diffraction here because u need to get the distance of the x value till the first destructive interference it's how we also derived width of central maxima
@@anands8461can u please explain it please its a huge request.. 😢
12:59 prove of snells law
49:00 proof of law of reflection
Sir please complete this series as soon as possible, we have very less time. By the way thank you for your all efforts
Soo real I'm having my exam on 4th March and today I started seeing this series 🫠
@@OasMittal
Jab jaago tb savera you are not alone bro🔥
@@OasMittal Bhay 2x pr dekha toh bhi kam lagra lmao
@@ForStudy-vo1ww yha Savera toh dikh hi nhi rha zindagi Mei Andhera hogya😭😭 pcb Leke
@@OasMittal
Ary bhai abhi bhi pura ek din hai..ho jayega yrrr🔥
1:28:42 sir yeh ques diffraction ka hai yaha pe hum diffraction wala formula X = (2n+1)LAMBDA/2a wala formula lgayege
to fir width 5 mm aa jayegi
pls correct it
Same doubt @Abhisheksahusir please confirm 🙏
tu coorect h bhay
Correct hai vo 🗿 ,
Mera width to 1.5mm araha hai
Aur abb 2.5mm.... :( 2nd secondary bright fringe to 5/2(lamda/d) pe form hota hai right ?
1:33:00 1) 0.60mm 2) 1.80×10^-3
Thnkuuuuuu sooo muchhh sirrr nd mahadev blessings u🙏🏻
Hi
spiderman❌
burman✅
Sir giving us a hope for boards ❤️ thanks from our side 🌸
Kitna aaya bhaiya
39:47 its wrong first we have to find speed of light in water which is 2.26.10^8 and then use it to find wavelength which will be 444.007nm
Not wrong, he divided the speed of light 3x10^8 by the refractive index of water which is 4/3 which gives the speed of light in water. (v = c/RI (water))
😂 frequency tumhare chacha denge ky bro pehle frequency nikalenge and frequency same hota to iski help se new wavelength nikalenge😂
I got 87 marks out of 100 in preboard and also got *HIGHEST* marks in my Class
Thank you very much sir❤😊
And in board how much???
@@Abhay--1 physics 93
Chemistry 94
Bio 97😎
@@srushtidarji6690 sir ke book liye the kya????......mere toh approx sare syllabus khatam ho gye.....mai bhi physics me sochaa hu....98+
@@Abhay--1 han
@@srushtidarji6690 kon sa question bank ya one shot(final revision)...⁉️⁉️⁉️
1:26:00 sir diffraction hi interference ka formula kyu lagae?
Concept clear nhi h tera
@@AryanGupta-ws2uncan you please explain
ma bhi wohi soch rha th
1:25:19 sir please tell me question me diffraction pattern diya h to ise diffraction pattern vale phenomenon se solve kyu nhi kiya.
Ha Bhai sir ne galat Kiya hai
@@Anshuverma-n7myes bro
Same doubt mere x=2.2mm and n=4 ye answers aaye hh
Ha even I was facing the same prob
@@Nehayadav39297 yes bro yaha pe hum diffraction wala formula X = (2n+1)LAMBDA/2a wala formula lgayege
to fir width 5 mm aa jayegi
1:45:17 mein sir phase difference pi,2pi hoga +ve x axis mein and -pi,-2pi hoga -ve x axis mein
1:56:05 abhishek sir>>>PW
💯agree
@@Ankit_Yadav319Fully agree 👍💯👍
Kitne aye board me bhaiya
jisko pw ke teachers ka nahi samaj aata vo aisa hi kehta hai bhai koi baat nahi jab hard samajh me nahi aata toh padhte kyun ho
2:14:45 pr 2pie by 3 ko direct phie by 2 mein put krna hai ?? Sirf phiee ki jgh kyu ni put kra ? Pls anyone tell...
yeah sir did a mistake 2pie/6 would be correct as phase difference is 2pie /3 and in formula it is phase difference /2
@@deepcraftyt527 hnji thnku!!
1:50:00 path difference question
Next
Thank you so much sir❤
You are such a great teacher🙌
Pyqs series is giving me confidence to do nums till now i was able to solve only theory derivation now i could do some nums hope after completing all videos of pyqs and theory videos i could do all questions 😊
Bro kaisa gya tha exam ?
Ray optics ka part 2 to aaya hi nhi
Bhai shi se dekho aa gya hai👍
Hn bhai
@I_am_annonymous_01 nehi babava
Nhi ayaa shi bol rhe hoo
bhai kha aaya hai part 1 aaya hai bs part 2 nhi aaya @@deathXsaksham
Sir if i score 60+ in my physics boards exam , then all the credit goes to you!!! Because you're always consistent from the starting of class 12th and provided us with the best content. Thanku so much sir ❤ 🙏🏻🙏🏻
If 😂
Aur kam aa gye to credit khud ko jyega
@@aniketpandey436870 me 60+ aya h
@@aniketpandey4368mtlb aye honge shayad 😂😂
Kitne aaye sch sach batana??
1:24:56 sir ydse nahi diffraction ho rah h
You are right
Bhai sir ka sahi h .. Google pe bhi yahi h
Sir 19 ve questions me humne nth bright ke liye tu (2n+1)Dlambda/2d ye padha tha tu apne ish questions me ydse ka formula kyu lagaya kyuki yu tu single slit experiment h
sir Ray optics Part 2
thankyou sir for this super content .
Thankyou ser . I dont even know how to thankyou for all these videos .
I have been following ur pyq series . ❤
Sir i am seriously saying that ki aapki video dekhe Bina mere me confidence nhi aata.... and jab me aapki pyq series kar leta hu na uske baad i am fully prepared for by exam so.....
Thank you so much sir for your all efforts 😊😊❤️❤️❤️❤️❤️❤️❤️❣️
Last questions were my favourite type of questions
Thanks a lot for this useful video ❤
I strongly beleive who watch all pyq series by abhishek sir they absolutely got good marks
👍❤❤
41:10 isko direct lemda1/lemda 2= nu2/nu1 se bhi kr sakte hai
441.75 approx 442 aa rha
exactly bhai...... itna karne baithunga toh 2024 mei baithunga exam dene 2026 mei khatam hoga....
@@amritapachakraborty5139 sahi baat hai
bro isme nu1 aur nu2 ka value bataoge?
57:22
Sir 39:04 pe refractive index se divide kyuuu kya?
Because wavelength changes with the medium. The solution Sir had given is quite complicate you can simply divide the wavelength by the refractive index of the given medium because we know that wavelength changes with the medium. You can use this formula as well, New wavelength = Given wavelength/ refractive index of the medium.
Hope I'm able to make you understand. :)
@@anjaliutsav3144thnku so much😊
Bahut achha padhate hai sir app 👍👍
Thank you so much sir ...for pyqs session.....❤ thanks a lot
Finally, the wait is over now.
Thank you for your all efforts 🙏
1:26:00 pe brighr fringe pucha hai or diffraction ke case me bright ka formula 2n-1 hota hai to uss hisab se sir aap ne galat formula put kardiya
exactly
Correct hai bro, nyD/d question aache se pdho
@@axyaeyt how
Thank you sir ❤❤❤❤😊😊😊 you are best teacher
2024--2025.....bhai kitna syllabus kar liya...????😊
Har jgh tera comment
@@VERMAISLIVE bhai Mera toh syllabus khatam abb tum apna dekho😂.....mai confirm karta hu logo se ki mai itna fast kar rha hu...or dusre log ka comment 1month pahle ka kaise
@@Abhay--1 acha badhiya hai bhai 🙂↕️yarr chem teacher btao
@@VERMAISLIVE bharat panchal sir
Yaar life me struggle kahe kaam nhi hota😢
Anyway thank you sir for this❤
Abhi raat ke 2 baj rahe hai😢
@@creative_unnati hmm 😢 abhi 4 baj rhe hai
1:50:13 sir yaha (2n-1)lambda/2 kyu liya ?
(2n+1)lambda/2 bataya tha aapne one shot me.
Uske hisab se 2 dark fringe banni chahiye.
Pls koi explain kardo
Mujhe bhi same doubt hua jab sir ne (2n-1) liya..... tumhe agar pta chale to mujhe v bata dena
both cases are correct (2n+1) and (2n-1) coz both cases mai odd no aata hai, but for such questions consider taking (2n-1) bc for this case n=1, 2,3 but for (2n+1) n=0,1,2,3 toh agar youre taking the latter which is (2n+1) make sure to reduce the value of n by 1 kyunki is case mai we also take in account the zero.
in short ,
(2n-1) le rahe ho toh n ki value wahi rakho jo question mai hai and agar (2n+1) le rahe ho toh n ki value mai se 1 subtract karke daal lo. hope that helps
@adivvaa means aap ye kehna chahte ho ki (2n-1) formula os better
dono shi h 2n-1 me n = 1,2,3 aur 2n+1 me n = 0,1,2..
hn confusion kam rehgi usme@@prakashpharmapowayan2795
48:46 sir ish question mein meu 2 ko rarer hona chahiye n kyunki meu 2 > meu 1 that is given in question and humne previous questions mein bhi Kiya hai ki jo greater hai wo rarer hai so please explain this to me sir or anyone ...., a confusion is there
bhaiii oneshot m kitna easy lg reha tha chapter yeh wla ab jb pyq krne bethi toh pta chla ki what was actually in the chapter
Haa. ek bhi question nahi ban rha ydse aur diffraction ka 😥 i am so tensed kaise hoga ye chapter.
1:03:28 sir ye formula lecture me kaha thi sir please koi bta do 😢
Wahi toh yaar ye wala lecture mein tha hi nahi
Nhi friend , ye formula yaad karne ki jarurat nhi haii , pahle aap path difference diya haii usse phase diference nikalkar, fir I net me rakh ke I ki value nikal lo , phir I / I Max krdo
Same baat padegi , lekin 12 me itne formula haii aap mere Wale way se Karo aasan padega,kitne formula yaad kroge
Appka pyar chaiye sir bs isse pyar se phddhatte rheee hamh appe sath hai hamh honge kamyabh ek dinh
Sir ak he Dil hai kitna bar jita ga sir love you sir I appreciate your support....❤❤❤❤
1:04:02 yeha kaise kiye sir please bta do nahi samajh aaya.... Any one bta do
Mujhe bhi nahi aaya 😢
12:44 btaungi 😂 sir apka gender to......😂😂😂
1:25:57 yha pe formula ma (n)lemda ki jagah (2n+1)lemda by 2 nhi lena th?plz explain
I also have the same doubt ...it is (2n+1)lemda/2 ...then n will be 2
@@snehapaul12125 exactly...but on the internet too its using the same expression as sahu sir
@@xAsHxIhmm..In next que he again used (2n-1)lemda/2 ....but we have studied that the path difference for destructive interference is( 2n+1)lemda/2
@@snehapaul12125 its the same thing,in case of 2n+1,for the third fringe for example, the solution will 3.5 lemda,then your answer is 3rd fringe ......but in the case of 2n-1 lemda/2,for 3rd fringe,the solution would be 2.5lemda,then we have to conclude that our fringe would be 3rd one [in case of ydse destructive interference] you can use which every expression you want to,but 2n-1 is kinda recommended
@@xAsHxI oky thanks
1:09:36
Sir but aapne bataya tha ki
I=4I. Cos²(phi/2)
But aapne yaha pe
I=Imax cos²(phi/2) use kiye hai
Sahi kaha bhai mujhe bhi ya formula pura one shot ma kahi nahi mila 😂
Both same hai max intensity 4 I mein hi milega
@@yadavji2020 sir ke one shot of waveoptics mei sir ne btya ha jb bhi ratio pucha jayein yeh wla formula lagate hai kyuki fir wo undefined kind of hojayegaaa
1:03:59 kaise hui sir kaise likhe wo
Wo toh formula hai brooo😂
@@AdiTea123 kon si formula bhai
Thankyou sir much sir 🙏 I wish inhi me se que aa jaye exam me
Kon kon 4 March ke liye dekh rha h ❤😊
Megh bro ✌️😢
मैं😂
Me
LEGENDS START STUDY BEFORE 20 DAYS FROM THE EXAMINATION AND EVEN SCORE BETTER THAN THOSE WHO STUDY WHOLE YEAR 😂😂
GOD BLESS YOU ALL GUYS ❤
then I am ultra legend
Then iam ultra pro max
@@POSITIVESOLO-sb5fs I still not finished it
@@millionairemind7338 🫡 Distractions?
@@POSITIVESOLO-sb5fs you are not Saheb-e-alam bro 🗣️🔥
Sir at 1:25:26 you have used ydse formula it's diffraction
1:04:03 yeha sir kaise likhe batao n please
That's the formula for path difference
ye sir ko khatarnaak ADHD hai
Is it true how do u know
@@abhinavbhatediya6990 iykyk
mere sath koe improvement walla hai?
🙋
At 1:14:20 i dont understand why sir took 2Q (phye) instead of Q(phiy) .....can anyone tell me
Its 2 theta instead of 2 phye sir se mistake ho gyi
Proper formula is - phye=2 theta= 2 lemda/d
Sir please complete pyq series soon i am from isc board i have completed Pyq of past 10 years of isc so i decided to do pyq of cbse too
Cbse tough h ya isc?
@Ayushi_.072 according to me in past few years cbse is making a great level of conceptual questions in board exam main focus of cbse is on students clarity towards topics and in other side isc is on its same pattern so cbse is more tough acc to my experience of class 12.
I didn't understood the the part where you use I=I0cos²(phi/2) but the last explanation explained me everything
Thankyou sir ❤
E=hv ,f=c/lemda then acc to this enegry is inversly proption
Sir pdf to upload bhi nhi ki aur kuch Chapter bhi he jinki pdf nhi h
Sir, Revision of Chapter - 2 and 3 remains 😊
Amazing explanation sir ❤❤
1:51:43 minima ka formula me maxima ka formula laga diye
Sir 19 ko pahla paper hai please usse payle ye series complete kardo
Sir views km h ya zyada h ham ni dekh re wo ....ye series bhot bhot help krri h seriously 😊 tysm❤
Sir in 1st question with frequency, energy carried must also be answer becoz u give reason in question 2 that eng. Depend upon frequency so it will also not change
39:8 u se phele he divide karna tha na
@Abhisheksahusir Sir Jo question 5(C) hai uska wavelength find karna hai , wavelength/n se bhi find kar sakte hai ?
Mujhe ek baat btao ki sir ne constructive interfernce galat btaye thi na?
Sir please ek video dono book kai sare graph 📈ki bhi bna do please sir 🙏
sir plzzzzzzzzzzzzzzzzzzzzzzzz upload all pdf of pyq plzzzzz sir😭😭😭😭😭😭😭😭😭😭😭😭😭☹☹☹☹☹☹☹☹☹☹☹☹☹☹☹☹
It is all uploaded in his telegran channel, Join using the link in the description
12:43 maine sahi suna kya (bataungi)
Sir m y PYQ series follow kr rha hu aur jb ap questions karwate ho tb questions apne ap attempt krta hu
To Mera doubt y h ki yhi PYQ SERIES sufficient h
y phir jo dusre teacher sure shot -numerical ki video lekr a rhe h unko bhi kru?
Plz tell me sir ur reply is very helpful to me ❤❤
Marks
sir your all videos are very helpful for us .
Thank you so much sir....
1:32:42
Sir, question to diffraction pattern ka hai
To usme interference ka formula kyu laga rahe hai
Bhai Mera bhi yahi doubt haii
Sir ek video dono book ka graph ki bhi bna do please
1:04:08 sir I didn't understand this part
Mujhe bhi nahi aaya 😢
Plz someone clear this ki ch 10 or 12 k derivation bhi arhi h qa?? Qki syllabus m yhi likha h ki only qualitative analysis
Derivation aayengay
sir understood everything ..and teaching is super
Derivations toh nhi aayega hoga? Yeh chapter seh?
Reflection , refraction or diffraction ka hai derivation
diffraction ki nahi hai sir hyugens principle se ayegi
Reflection and refraction ke ilawa koi derivation hai toh bta do yaar
Mne khuxh numericals skip krdiyeಥ‿ಥ
❤ u sir from uttarakhand pithoragarh
1:39:58 imp que
1:03:59 what formula is this
nvm
Sir plz upload part 2 of ray optics
Thank you sir❤
Sir assertion reason ki separate video chahiye
Jisko ye video chahiye like kre plz
Sir sare chapters k pyq ek hi vdo mein bana do🫣
beta abki bar 95% chaieye
Sir 30, mint revision sir????
Sir ❤ please upload the videos of 11th part-ll physics chapter please sir you are our last hope please sir 😢
Sir next chapter ke pyq please hurt this comment and complete this series as soon as possible
Sir Ray optics ka part 😢2 nhi aaya
Sir u are literally the best
Sir ray optics part 2??
Sir aap padte to super se upper ho par hame na 😂😂 boards ke paper ke hisaab se padao in sabh ke hisaab se hame smjh nhi arha bilkul boards paper ke hisab se padao sample paper vagera ko chod kr 😂😂😂 please sir please sir please sir please sir please sir please sir please sir please
Sir Assertion reason ke question ki 1 seperate video le aana. Badde pareshaan karte hai wo question 😢
Sir CBSE ka official sample paper solve kraiye
yes sir
Sir please upload the 11th physics video 😢
MAI JAA RAHA HUN DERIVATIONS DEKHNE AAJ SARA KHATAM JLDI SE PADH LETA HUN NUMBER AA JAYENGE
Sir qno 12 kuch bhi samagh nahi aaya ki aapne kya formula use kiya aur keisa solve kiya?
Sir kuch sample provide kar dijiye ya phir aap khud solve karva dijiye sir pls because time' management me problem ho Rahi hai pura paper solve nhi ho pata time par
Thank you so much sir ❤
beta abki bar 95% chaieye
@@abhaynayak-n2s😂
U are also subscribed to shamit 🤭🤌🏻🙌🏻