Ray Diagrams (3 of 4) Concave and Convex Lenses and Mirrors: Parallel Light Rays

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  • Опубліковано 8 лют 2025

КОМЕНТАРІ • 279

  • @stepbystepscience
    @stepbystepscience  10 років тому +1

    Jetzt bin ich in Berlin aber ursprünglich aus California. Jut, dass Sie die Videos hilfreich gefunden haben. Danke für die positive Bemerkung und viel Erfolg bei der Prüfung.

  • @Studywithanushka31
    @Studywithanushka31 17 днів тому +1

    This video is really really very useful.I also watched many videos about concave and convex mirror but i didn't understand but after watching this i totaly understand this topic.
    Thank very much for this amazing explanation ❤🙂

  • @latelaughlove
    @latelaughlove 10 років тому +6

    Even after listening to class lectures and class videos I didn't understand virtual images but this video made a lot of sense with the dotted lines representing what we see. Thank you so much for making this.

  • @parvathivaidyanathan6195
    @parvathivaidyanathan6195 9 років тому +1

    I wish to thank you personally for these videos. I teach underprivileged children. I used these videos using my tablet to explain to these kids who do not have access to a laboratory. My student passed his 10th grade in flying colors and and did well in physics thanks to videos like this. You made someone's life...Thank you once again and keep up the good work.

    • @stepbystepscience
      @stepbystepscience  9 років тому +1

      Parvathi Vaidyanathan The pleasure is all mine. I am very happy that you and your students have found the videos to be helpful. Thank you very much for commenting. I recently put together a simple website where you can find all of my videos listed by topic, www.stepbystepscience.com

  • @KaustavChakravarthy
    @KaustavChakravarthy 6 років тому +1

    Finally ... a video clip that gets ray diagrams right. Thank you.

  • @educationalaccount5963
    @educationalaccount5963 5 років тому +2

    Very good explanation, I got it the first 10 seconds I watched the video because I was confused on lenses and mirrors. But you put them right next to each other which instantly cleared it up. Thank you!

    • @stepbystepscience
      @stepbystepscience  5 років тому

      Great and thanks you so much for much for commenting.

  • @collinmackey2391
    @collinmackey2391 5 років тому +2

    you are one of my favorite UA-camrs! never failing to simplify concepts

    • @stepbystepscience
      @stepbystepscience  5 років тому

      I try to explain everything step by step. Thanks for the comment.

  • @davidcharette3267
    @davidcharette3267 7 років тому +11

    I can now pass my physics class!! THANK YOU!!

    • @stepbystepscience
      @stepbystepscience  7 років тому

      Great, hope it goes well, thanks for letting me know!

  • @ijazshaikh6859
    @ijazshaikh6859 10 років тому +57

    thumbs up well explained i think instead of attending school we should attend youtube...daily

    • @stepbystepscience
      @stepbystepscience  10 років тому +2

      yes, you can learn it all on your own. Thanks for the comment.

    • @ijazshaikh6859
      @ijazshaikh6859 10 років тому +4

      you really deserve thumbs up and thanks My pleasure

    • @samarajaved500
      @samarajaved500 6 років тому

      ijaz shaikh but Urdu subjects ka Kia ???

  • @chandrashekharrao1745
    @chandrashekharrao1745 10 років тому +1

    as a prof. i just want to say
    u r doing a great job.
    keep it up..........

  • @KristenG1985
    @KristenG1985 9 років тому

    Thank you! I'm a biology teacher studying for a general science certification test. Physics was never my strong point, and it's been over 10 years since I took a physics class. This was very helpful for my studying!

    • @stepbystepscience
      @stepbystepscience  9 років тому

      KristenG1985 I wish you much success with your studies. Thanks for watching and commenting.

  • @davidlourensz4822
    @davidlourensz4822 3 роки тому +1

    I hope you are still doing these, because you do them very well.

  • @katjam
    @katjam 10 років тому +2

    Thanks for the video and a well explained lesson! Had I not found this on UA-cam, I don't know how I'd pass my exams.

    • @stepbystepscience
      @stepbystepscience  10 років тому

      Klaes Günther Thanks for saying that it was well explained, I hope the exams go well!

  • @stevesoth4688
    @stevesoth4688 8 років тому

    Hi Mr. Swarthout, combining these examples is brilliant! I'm glad I found your videos, thank you!

    • @stepbystepscience
      @stepbystepscience  8 років тому

      Glad that you are finding them helpful.
      You can see a listing of all my videos at my website, www.stepbystepscience.com

  • @woodrothewoodlander4029
    @woodrothewoodlander4029 9 років тому +1

    Thank you so much. I have a test tomorrow and you just saved my grade!

  • @markuy6799
    @markuy6799 10 років тому +2

    This simply explains it all :) Thanks for this great video :) it really help me a lot. Iam a bit confused until I watched this video. It is so clear now :) Thanks again. Iam from the Philippines :)

  • @hollymichel17
    @hollymichel17 7 років тому +2

    your website and youtube videos are helping me tremendously! thank you so much!

    • @stepbystepscience
      @stepbystepscience  7 років тому

      Thanks for the comment, I try to go over everything step by step, in fact you can see a listing of all my videos at www.stepbystepscience.com

  • @ti6225
    @ti6225 10 років тому +1

    From Germany? Toll!! Vielen Dank für Ihre hilfreiche Video.. I'm from New Zealand sitting my year 12 physics ncea exam tomorrow.. Your video was very helpful for revision!

    • @stepbystepscience
      @stepbystepscience  10 років тому +1

      Jetzt bin ich in Berlin aber ursprünglich aus California. Jut, dass Sie die Videos hilfreich gefunden haben. Danke für die positive Bemerkung und viel Erfolg bei der Prüfung.

    • @ti6225
      @ti6225 10 років тому +1

      Brian Swarthout Vielen Dank !!!

  • @stepbystepscience
    @stepbystepscience  12 років тому

    Glad you found it helpful, just posted it this afternoon, good luck on the quiz!

  • @rajmbhatt
    @rajmbhatt 8 років тому +3

    I am in class7.This video was really very helpful because it was so simple and interesting that anyone would understand the concept.Really good video.

    • @stepbystepscience
      @stepbystepscience  8 років тому

      You are very welcome. You can see a listing of all my vidoes at www.stepbystepscience.com

  • @stepbystepscience
    @stepbystepscience  11 років тому +2

    You are right, that is very interesting!

    • @davidlourensz4822
      @davidlourensz4822 3 роки тому +1

      I think most of us can really develop to be brilliant if taught well. Iam a mature age student doing engineering this year and find our online uni lecturers to have no talent or purpose, sorry to say. Very refreshing to see people like yourself really care about the thought process of the student and try and connect with it.

    • @stepbystepscience
      @stepbystepscience  3 роки тому +1

      @@davidlourensz4822 That is an amazing comment, thank you for taking the time to write something so thoughtful.

  • @zoeveneris4709
    @zoeveneris4709 9 років тому +1

    THANK YOU SO MUCH OMG EVERYTHING HAS BECOME SO MUCH CLEARER!!!
    thank you!!!!

  • @Ravini123
    @Ravini123 9 років тому +1

    Thank you very much for the video; it was explained clearly with a good presentation. This was a really confusing topic for me but this video cleared up my doubts. Keep up the great work!

    • @stepbystepscience
      @stepbystepscience  9 років тому +1

      Ravini Ranasinghe You are very welcome, thank you very much for positive comment.

  • @abdulmuqtadir2615
    @abdulmuqtadir2615 11 років тому +1

    i was not understanding the topic but after your video .......its quite clear. thank you very much

  • @dorothytran2926
    @dorothytran2926 7 років тому +2

    Thank you! This was very informative and straightforward :)

  • @stepbystepscience
    @stepbystepscience  11 років тому

    Thank you for the comment, hope all is well in Spain.

  • @kristine6519
    @kristine6519 6 років тому +1

    thank you! your series helped me so much!

    • @stepbystepscience
      @stepbystepscience  6 років тому

      You are very welcome, thank you very much for watching and commenting.

  • @stepbystepscience
    @stepbystepscience  11 років тому

    Great question, one that I had not thought about, As the mirror gets flatter the focal gets longer and as the mirror gets more curved the focal length gets shorter. So in order to have the focal point on a concave mirror it would have to be a single point, same thing for a convex lens. I think? What do you think?

  • @albertogonzalezsalomon4818
    @albertogonzalezsalomon4818 2 роки тому +1

    Nice cool classes in this site. Thanks for Teaching!

  • @redwankazi1689
    @redwankazi1689 9 років тому +9

    Really good video! helped a lot :)

  • @atharvatrivedi2797
    @atharvatrivedi2797 7 років тому +2

    Thanks man! It really helped me now i can give my exam with some sort of confidence! 😎👍

  • @Jane-ic3fi
    @Jane-ic3fi 10 років тому

    Thanks so much for this video. Seeing the images formed by the lenses and mirrors in reality was most helpful. Overall this video helped me understand better and not just memorize.

  • @parshanpourbakht6118
    @parshanpourbakht6118 6 років тому +1

    This some quality education right here. I'm no joke impressed my! My physics teacher didn't show us how similar convex lenses and concave mirrors are and like wise with concave lenses bs convex mirrors.

    • @stepbystepscience
      @stepbystepscience  6 років тому

      Thanks for the comment, yes it is interesting how work.

  • @cendraines1018
    @cendraines1018 8 років тому

    thank you so much!!!!!!!!!!!!!!!!!!! It makes a lot more sense to me now than it did a few days ago when I learned it in class.

    • @stepbystepscience
      @stepbystepscience  8 років тому

      Great and thanks for commenting.
      you can see a listing of all my videos at my website, www.stepbystepscience.com

  • @caarmeen583
    @caarmeen583 11 років тому

    A fantastic video. Really helpful. Congratulations! Wishes form Spain!

  • @jam_music2448
    @jam_music2448 9 років тому +4

    Great!!!
    Thank You it helps me understand the lesson more.

  • @suruchijain6900
    @suruchijain6900 8 років тому +2

    very nicely explained
    learned a lot from this

  • @chloereagon7329
    @chloereagon7329 10 років тому +1

    Extremely helpful! Thank you!

  • @beloooga_whale
    @beloooga_whale 10 років тому +1

    Well I'm a little irked with my teacher now that I know how simple it all seems to be, now. Through all the over-complications, I hadn't understood much in the classroom. Thank you for making it concise yet informative!~

    • @stepbystepscience
      @stepbystepscience  10 років тому

      ***** Most things are really somewhat simple and can be simply explained. I always try to go step-by-step. Thanks for the comment….you look good in pink!

  • @Rottingboards
    @Rottingboards 11 років тому

    Thanks so much! Great explanation. Quick and precise. Great Teacher!

  • @gia607
    @gia607 8 років тому +1

    Thank you! That was really easy to follow! :)

  • @darrenling6334
    @darrenling6334 10 років тому

    Thank you so much for sharing this, this helps me a lot than i thought!! Very appreciate this.

    • @stepbystepscience
      @stepbystepscience  10 років тому

      my pleasure! thanks for commenting!

    • @darrenling6334
      @darrenling6334 10 років тому

      i will have my physics tests tomorrow, this really helped me in revision. :)

  • @glokta1
    @glokta1 11 років тому

    Thanks a lot! You couldn't have explained it better. Absolutely Brilliant!!
    Thanks a lot once again

  • @philipmarkos2749
    @philipmarkos2749 10 років тому

    I'm from Australia, I just want to thank you for making this video. I kind of skimped out of studying and my test is tommowow (yr.9), this helped me a lot, don't get me wrong I'm good at science, best in my class. But this stuff was confusing me, thanks for the help and know you have friends from down under!! 😃😃😃

  • @stepbystepscience
    @stepbystepscience  11 років тому

    Good question, but......The light does not "assume" that it comes from the focal point. When it passes through a concave lens it is always refracted in such a way that if you trace the rays back behind the lens they will meet at a point behind the lens. This point is called the focal point.

  • @QUEartisti
    @QUEartisti 11 років тому

    This was extremely helpful. Thanks!

  • @drcolon872
    @drcolon872 10 років тому

    Thank you, you helped me a lot with my studies and it's explained step by step ( so neat )

  • @susanatorres1019
    @susanatorres1019 10 років тому +1

    Great video...makes it clear!!
    Thanks!!

  • @eleanorsmith1359
    @eleanorsmith1359 10 років тому

    Absolutely amazing! Thank you so much for sharing this with us!
    If people are saying it is boring ^^^ then they should not be watching only to give negative feedback! I love to learn - they obviously do not! I appreciate this! :)

    • @stepbystepscience
      @stepbystepscience  10 років тому

      Thank you for the positive comment. I am very happy that you found the videos helpful.

  • @melodybeats2460
    @melodybeats2460 4 роки тому +1

    Very helpful video to understand the concepts of mirror and lenses :-)

  • @stepbystepscience
    @stepbystepscience  11 років тому

    Thank you for the positive comment!

  • @MrAlekozai
    @MrAlekozai 10 років тому

    Thanks for your video it is first-time I got this puzzle.

  • @nishkaarora6343
    @nishkaarora6343 10 років тому

    My concept of lenses and mirrors are crystal clear, its so well explained. Thanks for sharing this very helpful in information, its really helping me study for a very important upcoming test. =D

    • @stepbystepscience
      @stepbystepscience  10 років тому +1

      Nishka Arora Great that you found the video helpful, good luck with the up coming test.

    • @nishkaarora6343
      @nishkaarora6343 10 років тому

      Thank you so much, =) Shaurya Sinha

    • @shauryasinha5890
      @shauryasinha5890 10 років тому +1

      wow this is sooo good thanks

    • @stepbystepscience
      @stepbystepscience  10 років тому +1

      Shaurya Sinha Thank you sooo much for the positive comment.

  • @stepbystepscience
    @stepbystepscience  10 років тому +5

    @yash bhagwat, for all intensive purposes they are the same thing.

    • @stepbystepscience
      @stepbystepscience  9 років тому +1

      +DethFiesta Yes you are right, but my purpose was not to sleep in the tent. Thanks for commenting.

    • @cp_200
      @cp_200 9 років тому +2

      +Brian Swarthout thanx dude

    • @stepbystepscience
      @stepbystepscience  9 років тому +1

      +prakhar agarwal You are very welcome. You can see a listing of all my videos at my website, www.stepbystepscience.com

  • @segispereztakacs7005
    @segispereztakacs7005 4 роки тому

    Thank you for an amazing explanation I finally understand mirrors and lenses :)

  • @kirigirikyouko4875
    @kirigirikyouko4875 10 років тому +1

    Wow...!! Very interesting. You explained it really well....thank u very much

  • @nilabarot6647
    @nilabarot6647 9 років тому +1

    Thanks a lots.
    Presentation flow is really under stable.

    • @stepbystepscience
      @stepbystepscience  9 років тому

      +Nila Brahmbhatt You are very welcome. You can see a listing of all my videos at my website, www.stepbystepscience.com

  • @chloekoelmel6070
    @chloekoelmel6070 6 років тому +1

    thank god for this, everything else is confusing as hell. good visuals!

    • @stepbystepscience
      @stepbystepscience  6 років тому

      Thanks, it took a bit of time to put it all together.

  • @nainapanigrahi9082
    @nainapanigrahi9082 9 років тому

    amazing ... its was the topic that I felt I cannot do it and its most confusing .. but Sir Your explanation helped me not only to understand the concept but cleared doubts and boosted me to do it ..Thank you for Sharing

  • @daniellawakim9421
    @daniellawakim9421 9 років тому

    This was so useful, thanks! Plus i have a physics exam tomorrow ;)

  • @mseve4271
    @mseve4271 11 років тому +1

    Thank you so much! This video helped me a lot!

  • @laxmidharjena5428
    @laxmidharjena5428 8 років тому +1

    Thanks for your tips

  • @inhumayne08
    @inhumayne08 9 років тому +1

    thank you so much! this helped me a lot :)

  • @talakainiupayoginhu
    @talakainiupayoginhu 11 років тому

    thank you for such a clear explanation

  • @adriandennis3125
    @adriandennis3125 10 років тому +1

    Simple and easy to understand nice teaching :'D

  • @saviourthankyousirabel1186
    @saviourthankyousirabel1186 8 років тому +1

    step by step science l really love you thank you very much

    • @stepbystepscience
      @stepbystepscience  8 років тому

      Thanks for the great comment. You can see a listing of all my videos a my website, www.stepbystepscience.com

  • @lisa5483
    @lisa5483 9 років тому

    This is great! Thank you so much for this video!

    • @stepbystepscience
      @stepbystepscience  9 років тому

      Felicia Cooper You are very welcome and thanks for commenting.

  • @vaishalichendekar2735
    @vaishalichendekar2735 10 років тому

    Thank you Sir, that was very helpful for me. Have a nice day ! :)

  • @kavitayadav4186
    @kavitayadav4186 7 років тому +1

    thanks a lot for sharing this vedio... very helpful to explain my students practically

  • @nagarathinamkarthick4431
    @nagarathinamkarthick4431 10 років тому

    A lucid video. Thank u so much.

    • @stepbystepscience
      @stepbystepscience  10 років тому

      Thanks for the comment, no one has ever called my videos lucid…but that sounds cool.

  • @elimbecilregresa
    @elimbecilregresa 10 років тому +1

    Hello. Great video love the explanation, one question; what do you use for the presentation?

    • @stepbystepscience
      @stepbystepscience  10 років тому +1

      Assasin Pro Thank you very much for the comment, for this one I used my MacBook Pro, Keynote and Screenflow and screen capture program that lets me record from a Webcam and what is on my desk top at the same time. Then when editing I can switch between them as desired.

    • @elimbecilregresa
      @elimbecilregresa 10 років тому +1

      Thank you very much.
      Brian Swarthout

  • @ThePerfectionists23
    @ThePerfectionists23 11 років тому

    Thank you heaps really explained it well you've earned a like from me

  • @maygodblessalways
    @maygodblessalways 10 років тому +1

    Thank you much for this video. I am enlightenend more... If you can discuss more about the image(s) formed when the image is within the focal point and on the focal point, that would be very helpful to me or us... God bless you!

    • @stepbystepscience
      @stepbystepscience  10 років тому

      Mari Rose P D thanks for the positive comment, here is a one of my videos about image formation.
      ua-cam.com/video/c6mLLaqLdvg/v-deo.html

  • @falfarsi3959
    @falfarsi3959 9 років тому +1

    Noow i understand it!!! Omg its easy so easy i thgout its hard but you made it easy i dont know how but i finally understand!

    • @stepbystepscience
      @stepbystepscience  9 років тому

      Fatima Ali Just do everything step by step. thanks for commenting.

  • @arianabieber3504
    @arianabieber3504 9 років тому

    WOW that was so helpful THANK YOU SO MUCH

    • @stepbystepscience
      @stepbystepscience  9 років тому

      +Ariana Bieber Thank you for the positive comment.
      You can a listing of all my videos from my website, www.stepbystepscience.com

  • @Buduski67
    @Buduski67 8 років тому

    Thanks so much dude. Great vid.

  • @kuldeepsrivastava6861
    @kuldeepsrivastava6861 6 років тому +1

    Well explained

  • @alexandrakenefake9869
    @alexandrakenefake9869 11 років тому

    This was very helpful, thank you!

  • @hitmangaming6824
    @hitmangaming6824 7 років тому

    Thank u so much sir u really help me in my😄 annual exams!!!!!!

  • @mvlkameswari573
    @mvlkameswari573 11 років тому

    This video is very informative and clear. thanks for posting.Regards

  • @faucettscience
    @faucettscience 7 років тому +1

    Great video.

  • @saudaloud2549
    @saudaloud2549 10 років тому +1

    you are amazing sir !!

    • @stepbystepscience
      @stepbystepscience  10 років тому

      @Saud Essa Not really, but thanks for the positive comment.

  • @tanushtiwari5373
    @tanushtiwari5373 8 років тому +6

    awesome...... helped me a lot... want to learn science from U only

    • @stepbystepscience
      @stepbystepscience  8 років тому

      You can see a listing of all my videos at my website, www.stepbystepscience.com

  • @amirapal
    @amirapal 8 років тому +1

    thanks! it's very helpful to me :)
    are you teaching biology too, tho?

  • @sagi-d3i
    @sagi-d3i 11 років тому

    Thank you for this. I thought I was a bad listener but my teacher is just really bad at explaining things. We studied light for a while yet I still could not identify a concave and convex mirror.

  • @Mykhalonator321
    @Mykhalonator321 11 років тому

    Can you please clarify on what the focal point is? I am quite confused lol. So do you need the focal point in order to see? If so, then how does the eye see the image in the first place if the light does not pass the focal point at the beginning. Or does the eye just receives the light traces it back to the origin?

  • @boss55bob
    @boss55bob 10 років тому

    appreciate your work sir - medical student

  • @behroykiarad
    @behroykiarad 10 років тому +1

    beautifully explained, thank you!!

  • @khushi-wj9nj
    @khushi-wj9nj 2 роки тому +1

    Sir I am from india and I am really grateful to you sir

  • @WoodenFloorsRock
    @WoodenFloorsRock 10 років тому

    Very helpful slides!

  • @Soloisbac
    @Soloisbac 8 років тому +1

    Krishna says thank you for your teachings

  • @yashbhagwat2269
    @yashbhagwat2269 10 років тому +1

    Thank you very much. I have a question . Where is the focal point? . what is the distance between the focal point and lens or mirror? , or is there any ratio?

  • @wa64857
    @wa64857 8 років тому +1

    Very helpful
    Thank you 🙏🏻

  • @JoaoCastilhos
    @JoaoCastilhos 10 років тому

    great .... very clear, professor. Thanks.

    • @stepbystepscience
      @stepbystepscience  10 років тому +1

      Thanks for the compliment, I try to be as clear and step-by-step as possible and sometimes wonder if I am being too boring….also I am not a professor, but I do play one on UA-cam…in reality I am just a high school science and math teacher living in Berlin Germany. Have a great day.

  • @stepbystepscience
    @stepbystepscience  11 років тому

    Thank you for the "like"!

  • @anvamdawar8491
    @anvamdawar8491 9 років тому +3

    Nice video all the things are learnt

    • @stepbystepscience
      @stepbystepscience  9 років тому

      +Anvam Dawar Great, thanks for commenting. You can see a listing of all my videos at my website, www.stepbystepscience.com

  • @deepikakarunarathna1066
    @deepikakarunarathna1066 10 років тому

    Thank you, very nice video.

    • @stepbystepscience
      @stepbystepscience  10 років тому

      Thank you for the positive comment, it did take a while to put it all together in one video. Have a great day.

  • @GeneralChickenPiece
    @GeneralChickenPiece 11 років тому

    So after some thought I feel as though the answer to my following question is no, but its better to ask you anyway. Is it possible to have a Convex lens or concave mirror where the focal point is on the lens / mirror itself? I feel as though this would mean that the mirror / lens is a line...

  • @25Maggots
    @25Maggots 11 років тому

    Thank you really helpful video!