Chapter 8 Class 12 Physics | Electromagnetic Wave Class 12 Physics || Diamond series | CBSE JEE NEET

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EM wave class 12
Abhishek sahu Sir
Chapter 8 important Question Physics

[@prakharsrivastava5548]

23:06 ------2.38 × 10¹⁰Hz 27:05 -------Fleming's left hand rule ❤ 42:57 ------(A) +y direction (B) wavelength 3.48m (C) 8.55 × 10⁵ (D) B=1.03sin() (-k) 1:17:48------(B) 1:19:45 -----(A) 1:54:08 ------Thank you sir for your efforts ❤❤

[@akaankshabhatt]

I'll leave this comment here as a reminder of my fond memories from 12th grade ❤

[@amritgxll]

Haha nibi things 😂

[@Ayush_ydv13]

Do you really want to remember the 12th?

[@BinitBarnwal]

​@@Ayush_ydv13Dil pe laga 🫤

[@BinitBarnwal]

​@@Ayush_ydv13Dil pe laga 🫤

[@AmbreshKumar-d2k]

@@amritgxll chup kr nibbe

[@kanishka-ue5qq]

42:35 propagation - + y axis Wavelength - 3.49 Frequency - 8.6*10^7 B= 1.03*10^-8 cos (1.8y-5.4*10^6t)-k

[@JanhviTiwari649]

22:34 frequency= 0.23×10^11 Hz 1:19:45 p =0.16×10^-8 Nm^-2 1:21:56 frequency= 10^11 Hz , Bo = 10^-8 T 1:45:27 I = 1.72 watt / m^2

[@rapindersingh1786]

23:05----- 2.3*10^10 Hz 42:45----- Direction of em wave is +ve yaxis wavelength----3.49m frequency------0.86*10^8 direction of magnetic field is -k cap as icap*( )=jcap hence dirn of B is - z axis B=1.03cos(1.8y-5.4*10^8)(-k cap) power is 8 as frequency is also calculated by c/lamda where power is 8 1:17:43---- (B) 1:19:49----(A) 1:45:24----- 1.72 W/m^2

[@JannatFatima2007]

What is the value of uo ??

[@rapindersingh1786]

@JannatFatima2007 μο= 4π*10^-7

[@aditiverma6238]

@JannatFatima2007 4 pie x 10^-7

[@aditiverma6238]

1:45:24 mera 1.53 aara h answer

[@pastel07]

42:26 direction - +y Wavelength -3.49 Frequency - 0.86×10*8 Equation- ( -k)

[@aditiverma6238]

42:55 Direction = +y axis Wave length = 3.486m Frequency = 8.6 x 10^5 Hz Equation of B = K cap as the direction B knot = 1.03 x 10^5 T

[@RamratiJaiswal-i1v]

42:59 Direction of em wave is + Y axis Wavelength 3.49m Frequency 0.86×10^8 B=1.03×10^-8cos(1.8y-5.4×10^6t)k^

[@RaDevil27]

43:00 a) along +ve y-axis, b) 3.49 m, c) 0.86*10^8, d) Bo = 1.03*10^-8

[@earningwithhack0]

43:0 (1)EM wave travel in +ve y axis. (2) Wavelength is 3.4 meter . (3) Frequency is 8.4 ×10^5 Hz (4) -i x -j =k

[@damansandhu3570]

Bhai (4) me -i×-k = j hoga

[@ImPiyushOp]

Thankkk u soo muchh Sir 😭❤ Aapki vajah se Physics me confidence aa raha 🥹

[@ShreeDharBhatt-f8k]

42:41 a) +y axis b) 3.48m c)0.86 x 10*6 d) B =1.03 x 10*-8 1:17:43 option A

[@cristilina789]

Awesome 😎😎 always 🙏🙏🙏🙏🙏🙏🙏🙏sir ji ... Agg laga dii 💞💞

[@samratbhattacharjee1..]

Chapter 1. Electric charge and Field 26/01/25 ✅ Chapter 2. Electric Potential and capacitance 28/01/25 ✅ Chapter 3. Current electricity 30/01/25 ✅ Chapter 4. Moving charges and magnetism 04/02/25 ✅ Chapter 5. Magnetism and Matter 05/02/25 ✅ Chapter 6. Electromagnetic Induction 05/02/25 ✅ Chapter 7. Alternating current 06/02/25 ✅ Chapter 8. Electromagnetic Wave 07/02/25 ✅

[@WerTie-i6e]

Sir ho gya ye jis din aapne dala usi din kr liya Please ray optics jldi se daal do sir pleasee Apki ye series bhot helpful h pls sir

[@cosmichelll]

23:13 23.8x10^9 47:59 and here the fun part begins✨ 56:26 hmm, 🐴Horse hehehehehe🍁 57:20 sir become This 🌝 To 🌚 1:05:15 1:05:48 this is akward🎈 1:55:06 complete, mind refreshing lecture 😊❤❤

[@Deep1696]

😂

[@fakemagboy007]

23:01 2.39×10^10 Hz 43:00 A) Direction- +ive y axis B)3.49 C)0.86×10^8HD D)Bz=1.03×10^-8 cos(1.8y-5.4×10^6T) Sir in this question I think there is a mistake (w=5.4×10^6rad/s) which should be (w=5.4×10^8rad/s) 1:17:49 B) perpendicular to E and B, into the plane 1:19:48 A) 0.167×10^-8 Nm^-2 1:44:57 5.4 Nm^-1s^-1

[@abhishekprasad8986]

Bhai 1:44:33 wale q mein Meu not kaise nikalenge

[@aditiverma6238]

@@abhishekprasad8986 uski value board ke question ppr me given hogi

[@VivekSingh-kv8gm]

@@abhishekprasad89864pie/munot= 10to the power -7 karke

[@VivekSingh-kv8gm]

And answer 1.7 or 1.8 aaraha h dost 5.4 noiiii

[@aditiverma6238]

@@VivekSingh-kv8gm mera bhi aisa hi aara h

[@sahilrao9452]

23:06 ans is 2.38× 10¹⁰Hz 30:22 in x direction 43:01 (a)E.M.W is travelling in +ve y axis(j cap) (b) wavelength= 3.49 m (c) frequency=0.86×10⁸Hz (d) B= 1.03×10^-8cos(1.8y+5.4×10⁶t)k 1:17:50 I think option (b) is correct 1:21:58 frequency=10¹¹m Amplitude=10^-8T 1:41:32intensity=17.18×10^-49w/m²

[@sjoshi6825]

22:42 2.38 into 10 ki power 10 42:25 ➕ y axis, 3.454m ,7 into 10 ki power 7 Hz

[@prakharsrivastava5548]

Thank you soo much sir for your efforts ❤

[@sahilgotrizz]

44:51 (a) emw is travelling in +y axis (b) 3.48 (c) 0.85×10^16Hz (d) B=1.03×10^-8cos(1.8y-5.4×10^6t) k

[@SkedolPalmo]

Sir plz upload the videos regularly as we have very less time left for the upcoming exam.. thankyou Sir🙏🏻

[@pallak-x4z]

42:51 i +y axis ii 3.49 iii 0.85*10**4 iv 1.03×10**-8 (1.8y-5.4*10**6t)k

[@anujroy5738]

Namaste sir ji. Sir ji aap bohot badhiya padhate hoo bohot help hui hai meri . . Sir ek doubt tha.. Pyq ke liye diamond series follow karu ya last year jo aapne pyq series upload kiya tha woh???

[@GKWALADOST124]

42:58. A)+y B) 3.4 C) o.86 D) B=1.03×10^-8(1.8y-5.4×10^-6t)k

[@Dramebaaz-hu]

42:42 a) +ve y axis b) 3.49 rad/m c) 8.54 x 10^5 d) 1.03cos (1.8y - 5.4x10^6 t) i cap

[@techtalk9373]

27:00 Left hand rule by force tumb as em wave first finger as B middle finger as E

[@DrishtiDey-n8s]

43:01 a) +y direction b) Wavelength - 3.49 m c) frequency - 8.6*10^7 d) B= 1.03*10^-8cos(1.8y-5.4*10^6t)-k

[@KritikaTripathi-c4y]

43:01 a) +y axis, b) 3.48 m, C) 0.86 hz, D) B= 1.03 COS (1.8y-5.4×10⁶t)-k^

[@damansandhu3570]

42:53(a) . EMW. +Y axis (b) .Wavelength. 3.4 m (c). Frequency. 0.8 ×10⁸Hz (d) . 1.03×10-⁸cos(1.8y-5.4×10⁶t)-k✔️ 1:17:38 (a) 👍🏿

[@pratibhajha515]

42:47 a)+y axis b)3.4 c)0.88×10^8 d) B = 1.03 ×10^-8 cos (1.8y - 5.4 ×10^6 t)-k

[@aditiverma6238]

18:39 Wavelength= 12.56 x 10^-3 Frequency= 0.238 x 10^11 Equation of electric field= 60 v/m

[@Short.Circuit.Creation.X]

Sir please don't delay in uploading lecture 🙏🙏🥺🥺

[@its_your_love_krishna_]

Sir jo apne bola tha ki derivations ke liye alag se playlist kab upload karenge 15 minutes ki please bataiyena 🙏🙏🙏

[@dynamickawaki1669]

42:35 a] propogation + y axis wavelength = 3.49 frequency= 0.86 x 10-3 direction of B= along -k axis

[@mahijaiswal898]

1:17:40 a 1:45:35 1.71 watt m^-2

[@its_Riya__]

42:52 ans A- +ve y axis B- 3.43m c- 8.7 .10*9 HZ D- 1.03K^

[@nidhipandey244]

I hope you score 95% in your physics exam❤❤❤❤❤

[@its_Riya__]

@ thank uh😭

[@Pwmotiveseriesofficial]

Sir Next chapter ke videos jaldi upload kar dijiye please Diamond series bahut helpful hai hamare liye ❤️ sir under 14 tk sari videos upload kar dijiye kyoki aur physical education bhi padna hai please sir jaldi upload kariye 😊🥺

[@Pranjal-hedau]

yes sir same pls aldi upload kar dijiye

[@MUSIC_WORLX]

Bestttttttttttttttttttt teacher thank uhhhhhhhhhh sir ❤😊

[@jyostnamayeesahu2802]

Sir please lecture daily upload Kar dijiye 🙏

[@HudsTv-j2s]

Sir gamma rays and all other rays ka frequency and wavelength ka ranges by heart krna hai kya

[@Deep1696]

43:01 a=+y axis b=3.489 c= 8.58×10*6 d= -k

[@chiragkuntal2010]

Dirn of propogation=+k^ Wavelength=3.49m Frequency=8.6×10⁷ Eqn for magnetic field= B =1.03×10⁸cos(1.8y-5.4×10⁶t)k^

[@SRK-v6z]

Sir , can u please solve sample papers of educart special edition..

[@MehakPreet-rd1dl]

Thanks a lot sir it's very helpful pls upload rest of the chapters also

[@manishmaanju-d8k]

Hiiii MEHAK preet 😊😊

[@Anjali09800]

34.37 ans option a) 2m^-1

[@aditiverma6238]

38:22 Frequency actual value = 8.59 x 10^-5

[@MrZzuk-ny7kd]

Where is ray optics? (Haven't saw this video yet)

[@abhijeetgupta1740]

42:59 (I) EMW was travel in (+y axis) (II) Wave length = 3.48 m (III) frequenay → 0.85 x10° H2 (IV) B= 1.03 xI0-8 COS (1.8y- 5.4 x10°*) -K

[@Akash-k5d1p]

Thankyou sir aap ke sahare h abb

[@NikhilYadav-d2l]

23.48 ( 2.4x10^10)

[@justcreate1156]

Sir I just wanted to ask like if I watch this video and do the questions from your app, do I need to do the ncert?

[@sarmisthalaha2099]

Sir pls is series ko jaldi krea dijie bohut logo ka Physical education ka bhi exam hai🙏🙏

[@aayushsharma8092]

Sir 15 min series kb aayegi aur kya usme sbhi chapters ke derivations milege ??

[@NehaSingh-st9hk]

42:50 Ans a +y axis b)3.4m c)8.8×10^7Hz d)1.63×10^-8cos(1.8y-5.4×10^6t)-k

[@lakshitapanwar7932]

44:45 +ve y axis. b 3.48m c 0.85 ×10°8. D B=(1.03cos 1.8y-5.4×10°6t)^k

[@DragonATnight]

Bhen 3 part mai agar ham w= 2 pie v Sai nikalenge to answer .85 ×10*6 a raha hai

[@Bipulboy96]

35:59 a)-ve y-axis b)k=3.48 rad/m c)f=8.5*10^5 hz d) Bz=1.03cos(1.8y+5.4*10^6t)k cap 42:57 a) +y direction b) wavelength 3.48m c) 8.55 × 10⁵ d) B=1.03cos(1.8y+5.4*10^6t)-k cap 1:22:04 wavelength=3*10^5 m B0=1.66*10^-7 T E=50 sin(2.1*10^-5-6.28*10^3t) j cap B=1.66*10^-7 sin(2.1*10^-5-6.28*10^3t) k cap oh sorry, i made 1ghz=10^3 INSTEAD OF10^9 mine 1:22:04 ans is wrong 1:45:14 ans is 21.6 W/m^2

[@lakshitapanwar9275]

1:19:41 0.166 ×10 °-8

[@avneet9787]

SIR DERIVATIONS ki video daaldo and imp graphs ki pls sir

[@aayshaparveen3471]

@Abhisheksahusir derivation k liye konsi video dekhni chahiye 30 min series ya top 30 derivations...???

[@lottiswathi9766]

Top 30 derivations

[@Squidgame_xedits]

Top 30 derivations Bcause in 30 min videos not all derivations are covered, it is just for revision😌

[@prakharsrivastava5548]

Full josh ❤❤❤

[@aditiverma6238]

33:04 option a 2 m^-1

[@sradhxx131]

sir you deserve millions of views🌟

[@techtalk9373]

42:55 A . +Y B.3.48m C.B=1.033cos1.8y-5.4x10pow6t. -k

[@ankithpaul8580]

sir this series is really helpful i know u might be busy but please try to upload the videos faster maybe 2 chapter in a day because the exams are near and we have to do others subjects also specially out physical education is at 17 feb.

[@shardasingh944]

yess same here 😥😥

[@VivekRawat-c8y]

42:59 a.+y b .3.49 c.0.85×10^8 d.1.03k

[@shubhamrajbhar9726]

Kya bat hai sir kya bat hai🎉

[@kubui_borok.]

Love u sir ..❤❤concept clear😊

[@neetudevi-u7e]

Thanks sir 🙂👍❤❤❤❤❤

[@mahimaaa9808]

1:19:37. Pressure= 0.16 × 10^-8

[@_faixl_anxri]

Vote for 15 minutes derivation series ✌🏻

[@abubakersiddeq4490]

Frequency ranges sab byheart krni hai kya saare rays ki

[@Denjiischainsawman]

1:17:51 (a) 1:21:44 (i) 10^11 (ii) 10^-8 1:45:22 - 1.72 w/m²

[@Hamdanxali]

1:17:50 ka (b) hoga na?

[@zenitsuu.u]

​​​​@@Hamdanxali (a) hoga perpendicular to E and B and out of plane of the paper. Reason: *Electromagnetic waves are transverse waves*: This means that the electric field (E) and magnetic field (B) components are perpendicular to each other and to the direction of propagation.

[@Denjiischainsawman]

@@zenitsuu.u yeah!

[@Hamdanxali]

@@zenitsuu.u -i x j = -k nhi hota hai kya?

[@zenitsuu.u]

@@Hamdanxali use right hand thumb rule electric field ke direction me rakho thumb outward ayega

[@Chauhanlakshay02]

22:31 frequency 2.3x 10 power 10

[@Mercy-s5g]

Can i watch this series if i haven't studied anything

[@Denjiischainsawman]

karlo

[@prakharsrivastava5548]

I'm leaving this comment as a reminder of class 12th Journey❤ Last year of school life ❤

[@Dramebaaz-hu]

31:01 x-axis i cap 35:00 2m^-1

[@techtalk9373]

24:42 and Eo = 60N/C

[@RupaliSaini729]

Thankk u so much sir ❤

[@invincibleghost__23]

27:00 electric field, mf and Normal all are mutually perpendicular to each other so we get direction

[@nainakiledar3427]

Sir optics ki series daal dijiye really need it 🥲😭🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@SudeshnaLaha]

Thank you sir❤💖🙏

[@Denjiischainsawman]

wave optics is in streamed section!!

[@Squidgame_xedits]

Views gaining days for all the yt teacher's 😆😎

[@pgishivastatus6447]

Thank You Mere Sir ❤❤❤😊😊

[@SonuSonusingh-f3w]

Sir Ray optics ki diamond nhi aai h kyaa plzz sir btaoo hume bhot confidence aa raha hai iss series see 😢❤❤

[@CaspianA.S]

Thanku so much sir ji ❤❤❤ For this type of video at this time . Bs sir physics ke paper me aisehe question bn jaaye to maza he aa jaayega . Diamond 💎 name is really fit on this

[@cats_________]

Sir please last day ek formula rivision vedio bna dena or usme sare formulas cover krva dena phle wale formula rivision wali vedio me ye formulas nhi they . Please sirr...

[@manishmaanju-d8k]

Hii @@@ CAT 🐈 😻

[@pikachu_2135]

Sir just a random thought our exams are near and a lot of students are only dependent on you so i guess that we should do modern physics first and the remaining 2 chapter later as they are lengthy so we could save our modern physics...

[@AanandKumar-u8d]

22:33 frequency = 23.8 * 10^9 hz

[@healsmartAI]

Sir pls optics ka video de dijiye

[@Gyan28]

49:31🥰 49:51🤣🤣 kya baat hai sir jii

[@AjeetBharti-z7f]

22:45 thank you sir

[@bhavyasingh-j3b]

1:17:51 sir why into the plane???? plzz answer I have studied whole year from you not in any coaching classes..

[@AnkitaMaddheshiya-i2e]

Sir today I injoy the class It was fun 😁

[@AayanMulla-e1s]

Completed ✅

[@Arunkumar-uz7ik]

Sir….pls my kind request….pls start a new series one shot for class 11 also….especially for Neet students …plsss sir

[@SupriyaJain-tv7wh]

42:56 √=3.5m f=9.1×10^7 Dirñ=k×i=j Bø= 1.03×10^-8.....

[@KritikaTripathi-c4y]

1:19:50 0.166×10-⁸ Nm-²

[@techtalk9373]

23:03 f 2.5x10^10hz