Light Chapter Class 7 Science (Chapter 15) in One Shot | BYJU'S - Class 7

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  • čas přidán 6. 09. 2024

Komentáře • 922

  • @byjus-class-678
    @byjus-class-678  Před rokem +30

    🔷 Register for BYJU’S Spoken English 👩‍🏫:
    byjus.com/spokenenglish/?Z2wr255szHY&

  • @Soumya-q5m6
    @Soumya-q5m6 Před 7 měsíci +248

    Real Legends are watching on 2024

  • @Facts__mine407
    @Facts__mine407 Před 6 měsíci +24

    Real urtra pro max legend are watching in 2024
    System ha bhai ka 🚩💪💪

  • @AwkwardAvii
    @AwkwardAvii Před rokem +68

    mid-night studying experience can make u feel so dumb sometimes.
    Right now im 24 minutes in the video and i literally got shocked when sir said "u will get this in more detail in class 10th, and even 8th. but for now, because u guys r in class 7th..." i hurried to check the title and legit felt so dumb because im a class 8th student 😭😭😭

  • @user-fr5xu7nk6j
    @user-fr5xu7nk6j Před 7 měsíci +20

    Some legends are watching this video one day before of the exams 😅😂

  • @ThriftyToca
    @ThriftyToca Před 6 měsíci +4

    I have a doubt if in convex lens if it is diminished then why are magnifying glasses showing so big?

    • @mkgaming1171
      @mkgaming1171 Před 6 měsíci +1

      Because it is similar to concave mirror

  • @gopikota1346
    @gopikota1346 Před 5 měsíci +3

    TRUE legends are watching 1year after the exam

  • @prakhisvocals
    @prakhisvocals Před rokem +9

    Home Work Question
    A , V , M , O appears the same when viewed in plane mirror....

    • @lifecoachsonali
      @lifecoachsonali Před 7 měsíci +1

      it indeed does cuz it is perfectly symmeterical💁💁🤦

  • @rutujakadu4271
    @rutujakadu4271 Před 6 měsíci +2

    You really teach nice🎉😊

  • @Bruhhhhhh691
    @Bruhhhhhh691 Před 9 měsíci +5

    A,V,M and O appear the same when viewed in a plane mirror.

  • @richasingh7942
    @richasingh7942 Před 8 měsíci +5

    thanks to this wonderful video I can understand this concept more easily. Thanks to you sir.

  • @archanapanda2358
    @archanapanda2358 Před 6 měsíci +4

    4:21 I think we are in FNAF 4

  • @user-dl1gp1kb6d
    @user-dl1gp1kb6d Před 3 měsíci +1

    Your teaching is very nice😊😊😊😊😊😊

  • @priyankasrowa1860
    @priyankasrowa1860 Před 6 měsíci +3

    Nice sir

  • @asadmalek3915
    @asadmalek3915 Před 6 měsíci +2

    Reflecting of mirror

  • @poojarathod5960
    @poojarathod5960 Před rokem +5

    Sir I have a doubt that why the concave mirror forms inverted image and magnified or diminished

    • @Soumyabhasin.117
      @Soumyabhasin.117 Před rokem +1

      It forms the magnified image because of its properties

    • @mayankchaudhary5929
      @mayankchaudhary5929 Před 6 měsíci

      As it is formed like this and the purpose of this mirror is also like this

  • @pranjal387
    @pranjal387 Před 8 měsíci +6

    Thanks sir for this wonderful amazing video 😊😊😊😊

  • @itz_tejas005
    @itz_tejas005 Před 8 měsíci +14

    32:38 khana to mast aya hai or tasty bhi hai 😊😊🎉

    • @Hyperman437
      @Hyperman437 Před 6 měsíci +2

      Bhai muje bhi Dede😂😂😂😂😂😂

  • @LilyBakas80-3
    @LilyBakas80-3 Před 6 měsíci +4

    THIS CHAPTER IS SO HARDDDDDD WTHHH

    • @ilivivz_.
      @ilivivz_. Před 6 měsíci +1

      Fr like wtf is an convex mirror , lens and whatever 👾

    • @arlight2412
      @arlight2412 Před 2 měsíci +1

      It's long but not hard

    • @arlight2412
      @arlight2412 Před 2 měsíci +1

      If you will not focus on a thing it will become harder

  • @NeetuBala-ue9yf
    @NeetuBala-ue9yf Před 3 měsíci +3

    We are watching this video to learn chapter not the name of dish soaps like wim and many more.

  • @user-os4fi8sj4w
    @user-os4fi8sj4w Před 9 měsíci +6

    Sir you teach very good 🎉🎉🎉🎉

  • @AjaySingh-kk9kx
    @AjaySingh-kk9kx Před rokem +7

    Sir my exam is over
    I have got first position in school
    Thank you so much Sir ❤🤗👩🏻‍💻

  • @LUV.1395
    @LUV.1395 Před rokem +6

    Thanks sir! It helped me a lot...💜

  • @CheyaSceads
    @CheyaSceads Před rokem +10

    we see an object when it reflects light, but then how can we see an irregular surface

    • @aaratiyadav5656
      @aaratiyadav5656 Před 7 měsíci +1

      Does irregular surface does not reflect light?

    • @iamlongname
      @iamlongname Před 7 měsíci

      correct!@@aaratiyadav5656

    • @Dragonn594
      @Dragonn594 Před 5 měsíci +1

      So actually when light strikes on an irregular surface it reflects back in different direction which make us help see the texture and shape of the object

    • @Dragonn594
      @Dragonn594 Před 5 měsíci +1

      And actually every object reflect light but when light strikes at a plane or polished surface all the light rays moves in a same direction so we can see ourselves but when light falls on a irregular surface we cant see ourselves but we can see it hope it helps🤞

    • @CheyaSceads
      @CheyaSceads Před 5 měsíci

      @@Dragonn594 thnxxx

  • @dr.k.srilathakishori85
    @dr.k.srilathakishori85 Před rokem +5

    Can you explain glance angle of reflection

  • @simplediaryvlogers8975
    @simplediaryvlogers8975 Před rokem +10

    Sir tomorrow is my exam i have understand full chapter you are legand 💯💯💯💯💯💯💯💯🤘🤘🤘🤘🤘🤘

  • @asadmalek3915
    @asadmalek3915 Před 6 měsíci +4

    Maths ma visualising solid shape PLEASE

  • @emaazfakhruddin6099
    @emaazfakhruddin6099 Před 10 měsíci +4

    Sir I have a doubt if convex lens show ur image small or diminished why in magnifying glass, the image shown is big ??

    • @Invisible1195
      @Invisible1195 Před 6 měsíci +1

      Convex lens and concave mirror are same so an concave can make both magnified and deminished

    • @sawantmalik1328
      @sawantmalik1328 Před 5 měsíci

      You can do both but by changing position

  • @krrishdua9871
    @krrishdua9871 Před 6 měsíci +1

    Legends watching it on the day of Exam

  • @t2tiwaritechno815
    @t2tiwaritechno815 Před 7 měsíci +4

    00:09 Summary of Class 7 Science Light Chapter in one shot
    02:46 Light is energy and enables us to see things
    07:53 Reflection of light is the bouncing back of light from a surface.
    10:14 Reflection is the process of light bouncing off different surfaces.
    15:34 The law of reflection states that the incident angle is equal to the reflected angle.
    17:58 Real images can be obtained on a screen.
    22:34 Reflected rays of light appear to meet when extended backward
    24:58 Real and virtual images have distinct properties
    29:12 Size of object is equal to size of image in a plane mirror
    31:38 Understanding image formation in plane mirrors and observations related to image size
    36:35 Concave mirrors can form real and inverted images on a screen and inside the mirror.
    39:01 Concave mirror can form erect and magnified images
    43:48 Concave mirror can form virtual, erect, and magnified images.
    46:23 Focus of concave mirror and convex lens
    51:21 Convex lens can form both real and virtual images.
    53:35 Prism splits white light into seven colors
    57:27 Understanding the difference between erect and inverted images
    59:44 The importance of taking care

  • @sahilsahu5056
    @sahilsahu5056 Před 7 měsíci +2

    Yes sir... thank you so much for helping us.....

  • @anitaupadhyay2469
    @anitaupadhyay2469 Před rokem +6

    Normal means : perpendicular to mirror surface

  • @saruashuroy2968
    @saruashuroy2968 Před 4 měsíci

    Thank you saurabh sir😊 you explained very well l got 97/100 in my annual examination of physics

  • @vaishnavisingh_01-tf3ep
    @vaishnavisingh_01-tf3ep Před 7 měsíci +5

    ANSWER OF HOMEWORK: A,V,M,O (wonderful session

  • @anant_bagri
    @anant_bagri Před 6 měsíci +2

    Watch at 1.25x speed

  • @RahulGupta-wo6ly
    @RahulGupta-wo6ly Před 11 měsíci +3

    Sir, is it concave and convex mirror

  • @kuldipkaur2118
    @kuldipkaur2118 Před 5 měsíci +1

    Good evening sir

  • @ayushamarpatil
    @ayushamarpatil Před rokem +4

    congratulation for 50k subscribe 🎉🎉🎉

  • @-zzzzzzz4722
    @-zzzzzzz4722 Před 6 měsíci +1

    Miracle 10:41 10:45 10:48

  • @sanikatawade5515
    @sanikatawade5515 Před rokem +3

    What is reflection of light

  • @toobamuzzammil6742
    @toobamuzzammil6742 Před 7 měsíci +1

    Hi ma'am can you plz make one video on "our environment and natural resources"

  • @Anishkakushwaha21
    @Anishkakushwaha21 Před rokem +11

    Sir can u explain the difference between reflection and refraction...?

    • @Bruhhhhhh691
      @Bruhhhhhh691 Před 9 měsíci +1

      Reflection:- when a light gets bounces back from an shiny object which is polished from another side. ex:-A ray of light got reflected from mirror.
      Refraction:- when a light passes a transparent object. ex:- a ray of light passes the top of ocean.

    • @surathbehera3033
      @surathbehera3033 Před 8 měsíci +1

      Thanks bro or sister for this explanation 😊🙏😍

    • @Bruhhhhhh691
      @Bruhhhhhh691 Před 8 měsíci

      bro
      @@surathbehera3033

  • @charanchamp2ndchannel265
    @charanchamp2ndchannel265 Před 6 měsíci +1

    Hiiii siiir thx so much I am going to 7th standard this video is very useful for me

  • @dnmishra9545
    @dnmishra9545 Před rokem +5

    AMAZING

  • @Ritvickaishani
    @Ritvickaishani Před 7 měsíci +1

    Sir at 50:01 the mirror which you have drawn is Covex mirror not concave mirror

  • @AnitaThakur-ok8ii
    @AnitaThakur-ok8ii Před rokem +3

    Thank you saurabh sir

  • @j.s.studio5551
    @j.s.studio5551 Před 6 měsíci +1

    40:00 is main point

  • @prajval37
    @prajval37 Před 10 měsíci +3

    4:22 It looks like horror game because it belongs to a horror game 💀 (five nights at freddy's 4)

  • @HarshitOdedra-qk2jo
    @HarshitOdedra-qk2jo Před 10 měsíci +2

    YOUR VOIC BE LIKE 24:49

  • @jeneliyatirkey2858
    @jeneliyatirkey2858 Před rokem +3

    A,V,M,O is the answer of your homework questions

  • @Khushkaran-on1es
    @Khushkaran-on1es Před 7 měsíci +2

    We are learning chapter not the name of dish soap like wim and many more

  • @Wahid_4770
    @Wahid_4770 Před rokem +4

    Sir I have a doubt: Why does image appear upside down in concave mirror?

  • @bjcomedy3788
    @bjcomedy3788 Před 7 měsíci +2

    Plane surface

  • @sanikatawade5515
    @sanikatawade5515 Před rokem +3

    Sir what is reflection of light

    • @Soumyabhasin.117
      @Soumyabhasin.117 Před rokem

      Bouncing back of light is known as reflection of light

  • @AtomicStudent
    @AtomicStudent Před 7 měsíci +1

    Homework question ❓
    It,s N

  • @harishnayak3382
    @harishnayak3382 Před rokem +3

    Sir I want to ask u one question that how can we change the path of light

    • @Soumyabhasin.117
      @Soumyabhasin.117 Před rokem

      With placing an opaque object between the path of light

    • @poojarathod5960
      @poojarathod5960 Před rokem

      We will not change the path of light it will be straight only but if we put opaque material in the path of light it will form shadow

    • @Soumyabhasin.117
      @Soumyabhasin.117 Před rokem

      @@poojarathod5960 yes you are right

  • @_.kitten_eyes_.
    @_.kitten_eyes_. Před 6 měsíci +1

    Sir A , V , M , O will be appear the same in a plane mirror

  • @user-zk7cb6wo8q
    @user-zk7cb6wo8q Před 8 měsíci +3

    thanks sir for explaining so good you are the helping hand in exams thanks for this wonderful video

  • @GOKUEDITOR1321
    @GOKUEDITOR1321 Před 9 měsíci +2

    28:13 me

  • @Funfeist7
    @Funfeist7 Před 9 měsíci +5

    Awesome teacher and lesson🎉

  • @ganjis631
    @ganjis631 Před rokem +2

    157k Subscribers congratulations Saurabh sir

  • @nidhinegi2682
    @nidhinegi2682 Před rokem +25

    It was an amazing session, even though I'm in 6th I easily understood this concept.. Thank-you so much sir.

    • @mychannel_62
      @mychannel_62 Před 10 měsíci +1

      I am in 6th too, and I too understand this concept clearly

    • @anant_bagri
      @anant_bagri Před 6 měsíci

      If you are in 6th what are you doing here kid😂😂🎉

  • @vishiboii4427
    @vishiboii4427 Před 6 měsíci +1

    im sure byjus is underpaying all these teachers

  • @VinodKumar-yj8wj
    @VinodKumar-yj8wj Před rokem +8

    SIR, you are so amazing, your teaching is like ( NO WORDS ) all topics are clear now.
    THANKS A LOT🤍

  • @ManojPatil-kx7hh
    @ManojPatil-kx7hh Před 7 měsíci +1

    Ocean 🌊🌊🌊

  • @bimleshkumar2091
    @bimleshkumar2091 Před 8 měsíci +14

    If your exams are near
    No need to fear
    Because Byju's is there
    😊😊😊😊😊

  • @official_YugGaming
    @official_YugGaming Před 6 měsíci +1

    5:30
    FNAF
    Five nights at freedy enterd the byjus chat😂😂

  • @parinidhihedauarts8747
    @parinidhihedauarts8747 Před rokem +5

    Sir convex and concave shorts link

  • @user-cp7yv7in3y
    @user-cp7yv7in3y Před 9 měsíci +2

    The letter M appears same when faced in front of Plane mirror

  • @dr.k.srilathakishori85
    @dr.k.srilathakishori85 Před rokem +5

    Wonderful session sir

  • @user-np5pw9ly6b
    @user-np5pw9ly6b Před 6 měsíci +2

    WHY LIGHT ABSORB COLOUR

    • @gayatriminakshi3117
      @gayatriminakshi3117 Před 6 měsíci

      Light doesn't absorb colour the object absorbs colour and reflects rest so that we can see the object.

  • @chandranagar8218
    @chandranagar8218 Před rokem +3

    Answer of HomeWork Question - The letters A, V, M and O will appear same when seen In a plane mirror. 55:43

  • @mkgaming1171
    @mkgaming1171 Před 6 měsíci +1

    But sir,I have principal axis also in my book

  • @a.d.ssyedabbas81
    @a.d.ssyedabbas81 Před rokem +10

    Thank u sir it's my exam time
    But the lens part was not understood
    But u have put on a lot effort in explaining.
    All the other concept are clear.
    It was very much helpful for revision once again thank you
    Hope you work on the lens part
    Thank you🎉

  • @DeadShocksDeadlyPlayground
    @DeadShocksDeadlyPlayground Před 2 měsíci +1

    5:41 FIVE NIGHTS AT FREDDYS!

  • @WHITE-du4mg
    @WHITE-du4mg Před 9 měsíci +3

    Light Chapter Class 7 Science (Chapter 15) in One Shot | BYJU'S - Class 7

  • @arvindpatel7620
    @arvindpatel7620 Před rokem +2

    Light is energy to see any object

  • @ar_gaming7410
    @ar_gaming7410 Před 7 měsíci +1

    Sir your head

  • @_Angelxfeels_
    @_Angelxfeels_ Před rokem +90

    I don't know why but this video was not that good It didn't clear my concept😥

  • @DyutitBhatt5thB-ic9mz
    @DyutitBhatt5thB-ic9mz Před 9 měsíci +1

    19:29 Pinhole
    Projecter

  • @ashokekundu5655
    @ashokekundu5655 Před rokem +13

    Homework question: Which of the following letters A,V,M,N,P,O,R appear same when viewed in a plane mirror?
    Answer: These letters appear same in a plane mirror - A,V,M,O
    The session was really amazing sir❤❤❤

    • @byjus-class-678
      @byjus-class-678  Před rokem +4

      Stau tuned for more sessions

    • @OMPrakash-pt7ze
      @OMPrakash-pt7ze Před 8 měsíci

      ​@@byjus-class-678byjus writing stau in place of stay be like -huh..? What will u teach us then. 😂☠️

    • @lavenderstyle4579
      @lavenderstyle4579 Před 7 měsíci

      simple typo man in computer there is no such thing as auto correct@@OMPrakash-pt7ze

    • @ashok1225
      @ashok1225 Před 6 měsíci

      so what?? it might be a mistake? isnt such a big deal :/@@OMPrakash-pt7ze

  • @srivanibollepally8230
    @srivanibollepally8230 Před 8 měsíci +1

    Sir what about colour like brown it's not the color f right

  • @ahonabasu4367
    @ahonabasu4367 Před rokem +6

    Sir this video is very very helpful.. pls make a video on magnetism

    • @byjus-class-678
      @byjus-class-678  Před rokem +5

      Glad you liked it Ahona, We will definitely create video on magnetism, stau tuned

    • @OMPrakash-pt7ze
      @OMPrakash-pt7ze Před 8 měsíci +1

      *stau tuned
      Now go read the first comment uploaded by them themselves on the video
      **spoken english classes**
      *stau 😂😂

    • @anushkaarya1082
      @anushkaarya1082 Před 6 měsíci

      😂😂
      Lol ho gaya

    • @ashok1225
      @ashok1225 Před 6 měsíci +1

      they have a better english speaking skill than you, it might be a little typing mistake, because there are many comments and while replying to many, they might get mistakes?? everyone makes mistakes. even you do. so it isnt such a big deal.@@OMPrakash-pt7ze

  • @zainanesar5275
    @zainanesar5275 Před 11 měsíci +1

    i not understand when w place close it is inverted or far it will erect

  • @pavanraj8268
    @pavanraj8268 Před rokem +3

    A,V,M and O appear same because they cannot be laterally inverted on a plane mirror
    By Pavan

  • @ayushamarpatil
    @ayushamarpatil Před rokem +2

    Thank you so much sir 💖💖

  • @aashishraj967
    @aashishraj967 Před rokem +4

    Homework answer= A, V, M, O are letters which appear same when viewed in a plane mirror

  • @mukeshkumarmeena7474
    @mukeshkumarmeena7474 Před rokem +2

    Light is a form of energy,which produces sensation to eye.(Is it corrext)

    • @saritasoni9849
      @saritasoni9849 Před 6 měsíci

      Light is a form of energy, which produces sensation of vision.

  • @ajayakumarsahoo4341
    @ajayakumarsahoo4341 Před 9 měsíci +1

    as we know we cannot see light ... then how u can say light is white????? 6:52

    • @sitangsude-pq8fo
      @sitangsude-pq8fo Před 8 měsíci

      The light coming from lamps or led tubes mostly looks white to our eyes. Sir said that before explaining the prism part that it breaks white colour into 7 colours. The glowing light that is emited is often considered as white to our eyes.

  • @mahentczar
    @mahentczar Před rokem +6

    this will help me a lot with my exams
    😁

  • @zainanesar5275
    @zainanesar5275 Před 11 měsíci +1

    because we have plane mirror in home and it is lateral inverted

  • @user-xyz...
    @user-xyz... Před rokem +2

    Perfect channel for education

  • @maanthecoder11511
    @maanthecoder11511 Před 6 měsíci

    some of the torch version have both it can make it wide and also
    diminished how it can be possible

  • @muskan2743-y4u
    @muskan2743-y4u Před rokem +7

    Sir your takla is best reflector of light than a mirror 🤣🤣🤣🤣😁😁😁😁😁👻👻👻👻

  • @kushagrasworld1434
    @kushagrasworld1434 Před 28 dny

    Homework:
    A , V, M, N, O of the following letters appear same as in a plane mirror(if not titiled)

  • @GOKUEDITOR132
    @GOKUEDITOR132 Před 9 měsíci +2

    Example of real projector

  • @anant_bagri
    @anant_bagri Před 6 měsíci +1

    6:04 😂

  • @shessymahesh2784
    @shessymahesh2784 Před 6 měsíci +1

    The best explanation of science 😮 I've ever seen.

  • @Drpriyanshu34
    @Drpriyanshu34 Před rokem +2

    Becouse it plane surface

  • @yarrislive8840
    @yarrislive8840 Před 6 měsíci

    33:04 like sir's head chikna takla tvs-takla very smart