Light || Full Chapter in 1 Video || Class 7th Science || Junoon Batch

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  • Опубликовано: 14 окт 2024
  • Enrollment Link of Class 7th JUNOON Batch: bit.ly/3KhnFYv
    📝 This batch is specifically for class 7th and you can also watch this lecture on the App along with our Class Notes
    📲PW App Link - bit.ly/YTAI_fo...
    🌐PW Website - www.pw.live
    Complete Science For Class 7th - Junoon Batch
    • Playlist
    Batch Description -
    1 This batch is free & especially for our class 6th & 7th students.
    2- Subjects which will be covered are English, Science, SST & Maths
    3- Classes are going to be on the "PW Little Champs" RUclips channel.
    4- Lectures are going to be in recorded form
    5-Duration of the lecture will be 45 min to 1 hour.
    6-Experimental Learning is going to be provided.
    7- Notes are going to be provided on the PW app.
    8- Weekly schedules are going to be provided on the RUclips Channel.
    9- Channel Link: / @pwlittlechamps
    ----------------------------------------------------------------------------------------------------------------------
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    #Light #Science #JunoonBatch #PhysicsWallah #PWLittleChamps #Class7th #Class7thScience #Class7 #Junoon #CBSEClass7

Комментарии • 2,9 тыс.

  • @PWLittleChamps
    @PWLittleChamps  2 года назад +297

    Enrollment Link of Class 7th JUNOON Batch: bit.ly/3KhnFYv
    📝 This batch is specifically for class 7th and you can also watch this lecture on the App along with our Class Notes
    📲PW App Link - bit.ly/YTAI_foundation
    🌐PW Website - www.pw.live

  • @DhruvYADAV-vv6yv
    @DhruvYADAV-vv6yv 8 месяцев назад +241

    "EXAM IS NEAR"
    "NOTHING IS CLEAR"
    "NO NEED OF FEAR "
    "WHEN ALOK SIR IS HERE" now i am in 8 by mistake i watch this lol god please save me

  • @srajitarai
    @srajitarai Месяц назад +51

    Who is from batch 2024-25 attendance here 😂
    👇

  • @manjulmanohar
    @manjulmanohar 9 месяцев назад +75

    32:07 second side is polished and first side is reflecting surface
    43:24 inward
    55:54 convex lenses
    56:41 sunlight is of VIBGYOR COLOR because we can SPLIT it into seven color by a prism
    1:00:47 by placing a prism in the path of sunlight we can see that sunlight is a composition of 7 colors VIBGYOR

    • @Goatnaldo-od6cc
      @Goatnaldo-od6cc 9 месяцев назад +7

      Bro after searching in Google be like

    • @ajaykumardubey1158
      @ajaykumardubey1158 8 месяцев назад +5

      ​@@Goatnaldo-od6cc chalo usne google to kia😂

    • @RANDHEERSINGH-nm5vc
      @RANDHEERSINGH-nm5vc 7 месяцев назад +1

      BRO..after searching from google...😁😂

    • @AnokhiSonkar-yb7sk
      @AnokhiSonkar-yb7sk 7 месяцев назад +4

      Sir Kon Sa lens lagta h Bata dijiye ye please

    • @Aazimaa
      @Aazimaa 7 месяцев назад +1

      55:45 the property of human eye lens is convex lens.

  • @ayushianand5013
    @ayushianand5013 8 месяцев назад +17

    32:06 1st is smooth shiny surface and 2nd is polished
    43:27 inward
    56:00 I think its concave lens

  • @CrazyLofiGirl_official
    @CrazyLofiGirl_official 9 месяцев назад +40

    Sir you are one of my favourite teacher of science 🎉🎉😊😊😊😊❤❤ how many students are like alok sir please like 😊😊😊

  • @alphaprtywolf
    @alphaprtywolf 2 года назад +115

    1. Plane Surface
    2. Polished Surface
    🥺Miss you bhaiya :( thank you so muchhhhh bhaiya!!✨🙂 For giving all the knowledge and giving fun to that subject which was boring to us..!!

    • @deepaktiwari7958
      @deepaktiwari7958 2 года назад +8

      aere yae bhaiya nahi uncle hae
      🤫☺

    • @alphaprtywolf
      @alphaprtywolf 2 года назад +14

      @@deepaktiwari7958 agar aapne intro dekhi ho to Inka sabse best part
      Hello baccha log
      Me alok choubey aap sbhi ka sir or bada bhai and as simple in his case I call him bhaiya

    • @anupriya672
      @anupriya672 Год назад +2

      @Manish you are right

    • @official_ask_why_
      @official_ask_why_ Год назад +1

      Y'all you are right

    • @bearrrx.8174
      @bearrrx.8174 Год назад +2

      you can just say teacher❗isn't that hard

  • @atharwani7300
    @atharwani7300 10 месяцев назад +5

    From class 9th ...cing it to clear my concepts.....which remained uncleared due to n number of problems

  • @sabitatiwari5498
    @sabitatiwari5498 10 месяцев назад +6

    Thanks my dear sir for teaching

  • @mckvideo8050
    @mckvideo8050 8 месяцев назад +6

    The legends are watching it one day before exam but legends ultra pro Max are watching it on exam day like me

  • @rinkigupta3866
    @rinkigupta3866 8 месяцев назад +11

    Do not fear when alok sir is here

  • @frozen_Anupam
    @frozen_Anupam Год назад +30

    55:31 Ans: Convex lens 👍
    56:30 Ans: Multi-coloured
    32:00 Ans: 1 (Shiny) 2 (Polished)
    43:24 Ans: Inward
    1:0:55 Ans: Glass prism
    All answers here 🌟

    • @rshauryakumar9702
      @rshauryakumar9702 9 месяцев назад +1

      2nd is wrong it's answer is 'white'
      ('-')
      /(__)\

    • @A2Z_BOY77
      @A2Z_BOY77 9 месяцев назад +1

      😅wrong ans 2 white hoti hai
      😅

    • @gouravjha1939
      @gouravjha1939 3 месяца назад

      Ye bande bi like : jaldi edit karo re baba

  • @comedian8824
    @comedian8824 Год назад +7

    Thank u so much sir, i topped the class in my UT-4 exam

  • @sahilpandey3189
    @sahilpandey3189 6 месяцев назад +4

    Good teaching my dear sir❤❤❤❤❤❤😮😮😮

  • @babupaswan7602
    @babupaswan7602 7 месяцев назад +3

    55:48 answer is convex lens😎

  • @mukeshgangwal7124
    @mukeshgangwal7124 Год назад +6

    Alok sir you are the best teacher in physics 🙂🤗

  • @imperialx8787
    @imperialx8787 Год назад +15

    To find that sunlight is mixture of seven colours we can use Newton's disc it contains seven colours of rainbow and when we rotate it very fast then we can clearly see the white colour and then we can say that sunlight is mixture of seven colours of rainbow

  • @neeturanineeturani6587
    @neeturanineeturani6587 Год назад +7

    I am very thankful to you sir ,really I'm saying that I am very confused in this chapter but after seeing our video I'm confident that I will score full marks in my tomorrow's UT. Thank you so much sir ☺

  • @DhritiMehta-ep6go
    @DhritiMehta-ep6go 8 месяцев назад

    32:07 1st one is smooth and shiny surface and 2nd is polished surface
    43:24 Inward
    55:42 The human eye has a convex lens
    56:40 The sunlight is multicolored. For eg -if we see the a beam of light from a prism , we will be able to see a VIBGYOR
    01:04:06 If we place a prism in sunlight we will be able to see a VIBGYOR

  • @kasimazadazad6375
    @kasimazadazad6375 2 месяца назад +1

    (1) smooth and shiny surface
    (2) Polished surface
    (3) inward
    (4) Convex lens
    (5) Glass prism

  • @nitindaud8755
    @nitindaud8755 2 года назад +13

    Sunlight is white but when it passes through raindrop 💧 it get converted into seven colour of rain bow because white colour is mixture of all colours

  • @phadai8805
    @phadai8805 11 месяцев назад +18

    Light=A electromagnetic wave which produces the sensations of vision ....❤

    • @ArtiGangwar-o9c
      @ArtiGangwar-o9c 10 месяцев назад

      Here "e" is bubble so and will be used

    • @phadai8805
      @phadai8805 9 месяцев назад

      Thanks for likes..

    • @FLASH_FF007
      @FLASH_FF007 8 месяцев назад

      no, its a shiny surface or a form of energy and.......in the absence of light we cannot see anything..........

  • @adityapatil6656
    @adityapatil6656 Год назад +16

    Hi ! Sir my name is Samruddhi
    1) Smooth surface
    2) Polished surface
    3) Human eye is convex lens

    • @funnymovement1583
      @funnymovement1583 Год назад +1

      I think it is concave lense.

    • @satyamkumar8483
      @satyamkumar8483 9 месяцев назад +1

      @@funnymovement1583 you are so cute 🥺🥰🥰😍❤️♥️💘

  • @ParidhiSaxena.4
    @ParidhiSaxena.4 8 месяцев назад +8

    this hits different at 0.25 speed😂😂

  • @namanbhandari779
    @namanbhandari779 9 месяцев назад +5

    A human eye have a concave lens😊

  • @itishreesharma4496
    @itishreesharma4496 Год назад +8

    The lens present in our eye 👀 is convex lens made up of a transparent jelly like material.

  • @Cherryville653
    @Cherryville653 Год назад +13

    Thank u so much sir because of u i could understand this chapter .

  • @saurabhtripathi7871
    @saurabhtripathi7871 Год назад +5

    1) Smooth surface
    2) Polished surface
    3) Human eye is convex lens

  • @AryaveerSingh-ti8xm
    @AryaveerSingh-ti8xm 8 месяцев назад +2

    Reflecting surface of concave mirror is inward

  • @shubhangiwathore1225
    @shubhangiwathore1225 7 месяцев назад +2

    27:50 ko boy ne left hand upar Kiya aur mirror me bhi left hand upar Kiya 😅

  • @saiswaroopajena3736
    @saiswaroopajena3736 Год назад +12

    Sunlight -white because white light produces the mixture of different colours
    Example -rainbow

  • @deepakpandey2369
    @deepakpandey2369 Год назад +4

    Thank you sooo soo soo much...... appka wajah sa Aaj mana 85% score kia..... without any tution thank you so so much 😊🎉

    • @KuldeepSingh-cv4mw
      @KuldeepSingh-cv4mw Год назад +1

      I scored 94% persentage in my annual exam

    • @Unknown-person363
      @Unknown-person363 Год назад +1

      ​@@KuldeepSingh-cv4mw bro aapne clearly ratta mara hoga aapko percentage ki spelling bhi nahi aati

    • @deepakpandey2369
      @deepakpandey2369 11 месяцев назад +1

      @@Unknown-person363 you destroyed that guy xD
      Joke

  • @arnavrathour
    @arnavrathour 8 месяцев назад +3

    nice sir jii❤❤❤

  • @raghavkumar12301
    @raghavkumar12301 7 месяцев назад +2

    Property of concave mirror and convex mirror

  • @AdeebaAshraf-f3i
    @AdeebaAshraf-f3i 7 месяцев назад +1

    Light is a form of energy which produces in us sensation of vision

  • @Swarup_Nagre6256
    @Swarup_Nagre6256 Год назад +5

    Sir 1 que tha poochu janedo pooch hi leta hoo
    Animals रात के समय कैसे देखते हैं उनके के पास कोई लाइट सोर्स भी तो नहीं है?

    • @dakshJainMusiclifestyle
      @dakshJainMusiclifestyle Год назад

      Answer- we can see animals withput light as they are non luminious objects by the light that is coming from objects that are luminious reflects the colours of animals

    • @Shorts1to1
      @Shorts1to1 2 дня назад

      @@dakshJainMusiclifestyle somethinnnng deeeeeefaaallllllllllllllllllllttttttttttterd

  • @viralsbh
    @viralsbh Год назад +12

    3:24 topics to be covered

  • @imperialx8787
    @imperialx8787 Год назад +6

    1- Reflecting surface
    2- Polished surface

  • @Rustkeyyy
    @Rustkeyyy 9 месяцев назад +2

    Light is a form of energy that enable us to see objects

  • @VijayKumar-sl7gh
    @VijayKumar-sl7gh 9 месяцев назад +2

    43:53 sir one side of the mirror is polished so how
    the light is passing the mirror and giving reflection on the screen

    • @artvideo7464
      @artvideo7464 2 месяца назад

      Same question 😂that's not clearing my doubt

  • @TGDISHU777
    @TGDISHU777 12 дней назад +5

    Only legend watch thi video in 2x speed😂😂

  • @RanjeetKumarPandey-oj3em
    @RanjeetKumarPandey-oj3em 9 месяцев назад +8

    Har choti jeet ek
    badi jeet ki taraf kadam hai✨✨

  • @saniabanday4460
    @saniabanday4460 Год назад +4

    Only legendary people know the ball was broken and sir put it away by kicking it and also joined it back.😎

  • @Sujal_God
    @Sujal_God 2 дня назад

    Sir, we can also use a spoon as an example in concave and convex mirrors.

  • @syedminhaj42
    @syedminhaj42 9 дней назад

    1 question answer 2 polished surface 1 shiny surface 😊😊

  • @98350kunj
    @98350kunj Год назад +12

    Thanks alok sir what an amazing explanation ❤❤❤❤❤❤❤❤❤❤

  • @rythemsharma8998
    @rythemsharma8998 8 месяцев назад +4

    1 is smooth and shiny
    2 is polished

  • @Surajmusicreels132
    @Surajmusicreels132 7 месяцев назад +3

    Hii

  • @AbhiRajGamerz
    @AbhiRajGamerz 8 месяцев назад +1

    32:05 Ans 1 is polished surface and 2 is smooth surface

  • @Edutecharea
    @Edutecharea 2 месяца назад +1

    Sir I have a doubt , is pinhole camera is example of concave mirror but the pinhole camera uses a plane paper surface

  • @godabhiyt72882
    @godabhiyt72882 7 месяцев назад +3

    Only legend is move instagram to lacture when mummy and papa come😎😎

  • @ummuhaani2573
    @ummuhaani2573 Год назад +5

    Thanku sir...aap bohat hi ache teacher hai...im very thankful to you sir bec it will be help me in my olympaids...maina apna sara syllabus yahi sa complete kiya...❤ur best teacher with best teaching skills..

  • @aleena3516
    @aleena3516 Год назад +5

    Sir please can u give some more information like cases of concave mirror and convex mirror + principal focus + centre of curvature!!

  • @RANDHEERSINGH-nm5vc
    @RANDHEERSINGH-nm5vc 7 месяцев назад

    😀Sir your teaching Skills are so good. I like the way you teach with lot of fun😃. i enjoyed this video so much🙃🙂. I will suggest this video for all the Students who are in class 7. May I will score good marks in my upcoming exam.🙂
    I love PHYSICS WALLAH..!!😁

  • @ayushianand5013
    @ayushianand5013 8 месяцев назад +2

    Its colored we can see through a prism 57:22

  • @manishameena5040
    @manishameena5040 2 года назад +7

    55:30 - In human eye convex lens is present

  • @Sameermishra.
    @Sameermishra. 6 месяцев назад +45

    Who is from 10th 😂

  • @sapanakumari415
    @sapanakumari415 Месяц назад +5

    🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳

  • @dhruvsingh-eo1rp
    @dhruvsingh-eo1rp 7 месяцев назад +1

    Sir your explanation is very good

  • @Blinkoo_ot4
    @Blinkoo_ot4 9 месяцев назад +1

    Thank you sir for your excellent explanation I score 80/80 in science 😊

  • @meghasharma9357
    @meghasharma9357 9 месяцев назад +7

    Sir you are my best teacher of science 😊😊

  • @aaedits77
    @aaedits77 Год назад +6

    Light is also called Alok. Does it mean..... "LIGHT SIR IS TEACHER US LIGHT." 😂😂

  • @kusumsingh6259
    @kusumsingh6259 9 месяцев назад +1

    Sir the homework answer was prism when white light passes through prism it break into seven colours VIBGYOR

  • @KhadijaHashmi7
    @KhadijaHashmi7 Год назад +5

    Friendly teachers ☺️

  • @AnwarAli-us2hp
    @AnwarAli-us2hp Год назад +10

    Newton's disc is an example that Sun light have seven colours

  • @manishameena5040
    @manishameena5040 2 года назад +5

    32:00 - no. 1 smooth surface
    no. 2 polished surface

  • @Tech_Talkers13
    @Tech_Talkers13 7 месяцев назад +2

    1 smooth surface
    2 polisher surface

  • @Dancewithgolders
    @Dancewithgolders 7 месяцев назад +1

    I achieved 97 percent in my exam 😊😊😊thank to alock sir😊😊😊

  • @govindkuwar7646
    @govindkuwar7646 Год назад +5

    1 the side is the smooth shiny surface
    2 this side is the polished surface

  • @devindersethi5870
    @devindersethi5870 Год назад +6

    Class 8 Wale Attendance Lagao 😂😂😂😂👇👇👇

  • @CringeManya
    @CringeManya 8 месяцев назад +6

    31:56 2nd is polished and 1st is smooth and shiny surface 😉

  • @birendrajena9823
    @birendrajena9823 9 месяцев назад +1

    Sir really very interesting and very very very beautiful class i love this class

  • @shambhukumar645
    @shambhukumar645 4 месяца назад +1

    You are the best teacher for physics wall❤❤

  • @Creative-girl-26
    @Creative-girl-26 4 месяца назад +47

    Ek din mera comment bhi viral hoga 😢😢😢😢😢

  • @ArtiGangwar-o9c
    @ArtiGangwar-o9c 9 месяцев назад +19

    Sir your explanation is too nice 👍🙂

  • @nobit_a_09
    @nobit_a_09 Год назад +6

    Surface one is shinning ( mirror)
    Surface two is polished ( coloured)

  • @aadyaproop
    @aadyaproop 10 дней назад

    human eyeball has a convex lense so that it can conentrate the light on your retinas for better visibility . spectacles also usually have a convex lense

  • @Avinash-ie8tb
    @Avinash-ie8tb 2 месяца назад +1

    Very good explanation with practical 🙂

  • @laxmimahor8034
    @laxmimahor8034 7 месяцев назад +3

    0:00

  • @aaravbaisla7114
    @aaravbaisla7114 9 месяцев назад +3

    Hi sir 😂

  • @manzoorbhat2890
    @manzoorbhat2890 Год назад +6

    Wow۔
    Amazing
    What a brilliant way to clear things ❤
    Thanks a lot sir

  • @diksha12362
    @diksha12362 8 месяцев назад +1

    thank you so much sir btw the class was amazing..

  • @NadeemAkhtar-b4f
    @NadeemAkhtar-b4f 8 месяцев назад +4

    It is the first video i have seen of junoon batch. Very good video. I love this video ❤❤❤❤❤❤❤❤❤😊😊😊😊😊😊😊

  • @WhenCatPlayz
    @WhenCatPlayz 7 месяцев назад +3

    bechare bache kitna kuch padhna rehta hai itni si umr se🙃🙃....ye to khelne ki umr hai🤓🤓

  • @mrsaparna3974
    @mrsaparna3974 8 месяцев назад +6

    Sir you are great you describe this chapter in easy way😊😊😊😊😊

  • @preetijha5629
    @preetijha5629 2 месяца назад +1

    1 is smooth shine surface and 2 is polished surface

  • @rajeshkrishngoswami6416
    @rajeshkrishngoswami6416 8 месяцев назад +5

    39:10 sir ki over acting 😂😂

  • @PROGAMER-gc8el
    @PROGAMER-gc8el 8 месяцев назад +6

    Only legends are watching this video before one day of exam 😅 all the best to all

  • @factboy2949
    @factboy2949 Год назад +4

  • @Akashkumar-xs6bp
    @Akashkumar-xs6bp 8 месяцев назад +2

    Light is a form of an energy

  • @animescale9695
    @animescale9695 9 месяцев назад +7

    I'm from 8th I can said this chapter is very important plz..
    My request for 7th students iss chapter ko daayan se parna just because kyuki ye 8th mai bhee hai.. okkk.. chapter 16 is light form class 8th science book 📚📚📚❤❤

  • @rngaming5582
    @rngaming5582 9 месяцев назад +5

    Jo Jo legend hai vo like kare❤

  • @asmi_nagawade
    @asmi_nagawade 7 месяцев назад +1

    in a magnifying glass can convex mirror be used??

  • @DilshadHusain-y9u
    @DilshadHusain-y9u 7 месяцев назад

    31:37
    1 =Sinning surface
    2=Polished surface.

  • @Toofangaming00x
    @Toofangaming00x 8 месяцев назад +4

    Thanks sir for teaching us you are very intelligent❤❤❤😊
    2:43

  • @ganeshmadage4350
    @ganeshmadage4350 8 месяцев назад +4

    A biconvex lens is the type of lens found in the human eye, and it is responsible for forming genuine images. It works by focusing light rays onto the retina. The eye lens is made up of peculiar elongated cells that have no blood supply and rely on the aqueous humor for nutrition.

  • @Jeve-123
    @Jeve-123 8 месяцев назад +4

    32:06 first side is shiny and smoothed surface and the second side is polished surface

  • @tinasharma1510
    @tinasharma1510 7 месяцев назад +1

    Who remembered the ball it was used in motion and time chapter also.Also the ball has a thread hanging 😊

  • @aryansonkar9732
    @aryansonkar9732 2 месяца назад

    At 32:18 1 is smooth surface and 2 is polished subjects

  • @susmitabarik596
    @susmitabarik596 7 месяцев назад +3

    Thank you very much sir for this class🤗💫 and a versatile explanation.....