This is the best channel I have found for science, the sound quality is great, voice isn't monotone and is engaging. The language used to explain things is very clear and there's no umming and ahhing, which I find really breaks my concentration when trying to learn things. Furthermore the presentation is very well done and it's a perfect mix of the theory and the problem solving behind it. Thanks so much!
Thank you very very much for writing such a nice comment! It really means a lot to me! As you mentioned I try to be clear and give an appropriate mix of explanation and problem solving.
It took me literally an hour going through a powerpoint and still not understanding yet I watch one video less then ten minutes long and I come out knowing exactly what I'm doing! Thanks
Thanks Mr Brian. Having to do college online during lockdown (UK). I found myself having to teach myself most of the lessons. Your channel is blessing.
is the Critical Angle always the Smaller refraction index over the larger, or is it the "first medium" over the "second medium", eg, if we have 2 planes of glass as a display box, the first/outside layer of glass is n=1.5750, the 2nd inside layer is n=1.4899, Critical Angle = InvSin(n1/n2), will n1 be the outside glass, or just the glass with the lower refraction index? as if it calcualted with InvSin(1.5750/1.4899) it will obviously not calculate. So does this mean ther eis no critical angle, or just always calculate with InvSin(Lower n / Higher n) Thanks.
Hello! A little help with a problem like this ? : A light ray in water strikes a water-air interface at an angle of incidence of 50 degrees. What happens? What is the angle of refraction? would this apply ? ... I'm so confused lol
When i first looked at this fibre optic cable, i thought this must be so complex, then you explained it so simple that it was like 1+1 = 2 🤣. Thanks mayne 👏🏽
Can you help me with this? Develop a method to measure the critical angle for the air/water interface. Using a scientific diagram show a set up that you would use to measure the critical angle between the media of water and air. Based on the teacher, she said that we have to make a chart of 10 trials where each trial will contain two parts. I have no idea of what she is talking about. Is the critical angle the same as the refraction angle or it is only the same as the refraction when its in 90 Degrees? Please help me :(
Maybe she just wants you to take 10 different measurements of the angle of refraction from 10 different angles of incidence. Start with angle of incidence at 0 degrees (ray of light perpendicular to surface) and increase angle of incidence 10 times until you get to the critical angle. Does that help?
I'm trying to calculate the angle of sun at which you can see a rainbow, double rainbow, and the angular width of the rainbow, but always end up with too many unknown variables for some reason.
+Harika Marpohno Actually it does not matter. I just generally make the side that the light is coming from n1 and the side that the light would be going to n2.
Step by Step Science imdeed I was trying to get some definitions but I was studying Radio wave propagation in sky waves and light see,s to have all common analogies
You deserve way more hits on your channel than you have right now. Great stuff, thanks as always!
I appreciate your comments as always.
This is the best channel I have found for science, the sound quality is great, voice isn't monotone and is engaging. The language used to explain things is very clear and there's no umming and ahhing, which I find really breaks my concentration when trying to learn things. Furthermore the presentation is very well done and it's a perfect mix of the theory and the problem solving behind it. Thanks so much!
Thank you very very much for writing such a nice comment! It really means a lot to me! As you mentioned I try to be clear and give an appropriate mix of explanation and problem solving.
Genuinely one of the most useful videos i have ever seen on the topic. Lenard more here in 9 mins than in an entire lesson at school.
Thanks for the comment. you can also see a listing of all my videos by topic at www.stepbystepscience.com
It took me literally an hour going through a powerpoint and still not understanding yet I watch one video less then ten minutes long and I come out knowing exactly what I'm doing! Thanks
Amazing, thanks for such a great positive comment.
I've been stuck on this type of problem for 2 days now, I click on your video and you explain it in 4min... Thank you so much!
You're so welcome!
wasted like 14 days trying to learn from the book. under ten minutes, and i get EVERYTHING.
THANK YOU !!!!
Thank you for the very positive comment, it is good to know that the video was helpful to you and hopefully others.
Thanks Mr Brian. Having to do college online during lockdown (UK). I found myself having to teach myself most of the lessons. Your channel is blessing.
Good luck and stay safe. Thanks for the comment.
Thanks man, your videos are exceptional!
Glad you like them!
@HumanityOTP_ I just generally make the side that the light is coming from n1 and the side that the light would be coming from n2.
All you say is right in this video but a little suggestion you should say how 1.55 became 48°
Thank you for upload this video... It helped me more to define critical angle ❣️
Glad it was helpful! Thanks for watching.
Happy to find a GOOD physics teacher unlike my school's physics teacher
+אוראל פישמן Glad that the videos could be of help. You can see a listing of all my videos at my website, www.stepbystepscience.com
Love this video. Please make heaps more on science topics. Thank you!!!
Thanks for the comment and I am trying to make one video a week...thanks for the encouragement.
thanks alot man, watching from Palestine
You're welcome and all the best from Berlin.
Thank you so much! My physics class is online and it's been really confusing. This helped so much!
kiwigymnast16 great, if you are a gymnast then you already have a lot of experience with physics. Thanks for commenting.
you are too advanced my child
Thank for posting so many great videos!
Thank you for these videos!! They are very helpful
You're so welcome! Glad you like them.
you are the best teacher!!! thank you for this helpful explanation!
that is very kind of you to say, glad that I could help.
How would you calculate the critical angle for a bullet ricochet?
is the Critical Angle always the Smaller refraction index over the larger, or is it the "first medium" over the "second medium", eg, if we have 2 planes of glass as a display box, the first/outside layer of glass is n=1.5750, the 2nd inside layer is n=1.4899, Critical Angle = InvSin(n1/n2), will n1 be the outside glass, or just the glass with the lower refraction index? as if it calcualted with InvSin(1.5750/1.4899) it will obviously not calculate. So does this mean ther eis no critical angle, or just always calculate with InvSin(Lower n / Higher n)
Thanks.
In order to get to the critical angle the second material has to have a higher index of refraction.
Thanks, i finally understand the definition of an critical angle, so it basically is the angle(i) that makes the refracted angle to be 90.
Yep!
This was awesome 🙏🙏
Thanks so much and best wishes
Amazing Explanation
I Wish I have you as my Teacher
And I wish you could be m student, Thanks for watching and for all the comments.
Thanx a ton. u r doing gr8 yeoman service to mankind.
Thank you for the very nice comment.
Thanks a lot my friend. Now I can rest assured I will not be blank at my exams, thanks to your explanation! ;)
pashwa shah Great, hope the exams go well, thanks for commenting.
The privilege is mine :)
nah man the exam is much much harder than this they wil throw curve balls at you trust me i have experienced it its way fucking harder
Hello! A little help with a problem like this ? : A light ray in water strikes a water-air interface at an angle of incidence of 50 degrees. What happens? What is the angle of refraction? would this apply ? ... I'm so confused lol
Maybe you should watch the videos on refraction first.
Thank you sir for the wonderful video !!!
Dhana Abishek You are very welcome, thanks for commenting.
When i first looked at this fibre optic cable, i thought this must be so complex, then you explained it so simple that it was like 1+1 = 2 🤣. Thanks mayne 👏🏽
Great to hear! You are very welcome and thanks for the comment.
Thx bro
Today was my EoT physics exam
Helped me alot
Excellent, I am glad it went well.
I love your explanation! great !
+Ray Thank you very much.
You can see a listing of all my videos at my website, www.stepbystepscience.com
This guy's a genius
How do we know the value of thetaC will be = 48.6° ? Where did it come from...do I need to learn trigonometry for that?
you can use your calculator.
I have a question -
which is the refractive medium, water or air?
I need it thanksss
Thank you very much you have helped me very much ❤️
Great, thanks for watching and commenting.
how does the formula change if the mediums are different and air is not one of them?
Mathieu Adams the formula does not change, just replace the indices of refraction with the ones for the materials you have.
Fibre optics math was very useful
Glad you think so!
Can you help me with this?
Develop a method to measure the critical angle for the air/water interface. Using a scientific diagram show a set up that you would use to measure the critical angle between the media of water and air.
Based on the teacher, she said that we have to make a chart of 10 trials where each trial will contain two parts. I have no idea of what she is talking about.
Is the critical angle the same as the refraction angle or it is only the same as the refraction when its in 90 Degrees?
Please help me :(
Maybe she just wants you to take 10 different measurements of the angle of refraction from 10 different angles of incidence. Start with angle of incidence at 0 degrees (ray of light perpendicular to surface) and increase angle of incidence 10 times until you get to the critical angle. Does that help?
I guess you are right. Look, so the critical angle is the angle of refraction or is it just the angle of refraction when its at 90 Degrees?
The critical angle is the angle of incidence that results in an angle of refraction of 90 degrees.
Ohh ok. Thank you very much. I liked and subscribed :)
Thanks...helped me a lot!
Great, thanks for watching and commenting.
Thank you dude! 🙌🙌
You are very welcome, thanks for watching.
How to pot it on the calculate to get the critical angle answer.
I'm trying to calculate the angle of sun at which you can see a rainbow, double rainbow, and the angular width of the rainbow, but always end up with too many unknown variables for some reason.
how to find a critical anhle when the refractive indices of air and glass is given plz answer it fast.
thanks so much. really helped me understand this topic more. :D
You are very welcome. You can see a listing of all my vidoes at www.stepbystepscience.com
Thanks so much man this was really helpful
Thanks a million man :) It's 3am and my exam is in 5 hours :P
I hope the exam went well and that you did not fall asleep right in the middle of it!
how do you find out which is n1 and which is n2? is it given or do you have to figure out yourself?
+Harika Marpohno Actually it does not matter. I just generally make the side that the light is coming from n1 and the side that the light would be going to n2.
great video
This was so helpful! Thank you so much! :)
+Hannah Alexis You are very welcome, thanks for commenting.
You can see a listing of all my videos at my website, www.stepbystepscience.com
I was gonna go crazy cuz I forgot that when transposing sin, you're gonna have to make it as arc sine and I forgot. DUde hhahah
Very helpfull thank you
You're welcome! Glad it was helpful.
Step by Step Science imdeed I was trying to get some definitions but I was studying Radio wave propagation in sky waves and light see,s to have all common analogies
Very very thank you sir
+Jeetendra Singh You are very welcome. You can a listing of all my videos from my website, www.stepbystepscience.com
like your teaching video very much!:D
How 48.6 angle came sir please explain
thank u 💙.
T H A N K Y O U !!!! T H A N K Y O U !!!! GREAT EXPLANATION OF THIS CONCEPT!
porkybunbun604 A NEW SUBBY
porkybunbun604 Thank you twice, for the subscription and the comment.
Tell me how 0.75 is 48.5degree
You have to use the inverse sine button on your calculator. The sine of 48.5 degrees 0.75.
Sine
@@stepbystepscience in exam
We should catch calculater to examination hall
Thanks
you are very welcome
I reckon cloning this guy and assign those clones to all high schools to teach Physical Science.
Sounds like fun, but if not, you can a listing of all my videos from my website, www.stepbystepscience.com
thnk u so much sir ..
You are very welcome.
You can see a listing of all my videos at my website, www.stepbystepscience.com
You Rock! :D
+MaxWin Thank you...You can see a listing of all my videos at my website,www.stepbystepscience.com
Thank you!!!+×
Winx Flower You are very welcome!!!!!!
"You can waste endless hours watching youtube videos, Well, not this one!" #D
+pashwa shah Thank you, You can see a listing of all my videos at my website, www.stepbystepscience.com
I am not getting your language
Rajesh Jangra It's English!
Too much talk which is not necessary!!! Video gets boring!!!
😔😔😔😡
I agree
Sorry.
thanks
Welcome