Parabolic mirrors and real images | Geometric optics | Physics | Khan Academy

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Parabolic Mirrors and Real Images. Created by Sal Khan.
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Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.
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[@puggsoy]

I watched this to learn about parabolic mirrors, but in addition to that it was the first video I've seen that properly and clearly explains how real images work. Thanks a lot!

[@martinmatin4636]

always impressed by sal's drawing

[@DJPetomatick]

2:21

[@TheReptileDragons]

Is this how satellite dishes work? Do they pool up the energy and it reflects onto the single focus, giving a clear signal?

[@amirelias885]

wheel housing ....? you're a pro man.

[@TheDevilvivek]

if real images formed by concave mirrors are located on front of the mirror, why do we see the image on the mirror itself, as if it were located behind the mirror?

[@TXYu-pq3xt]

truly nice video. it enhances my understanding of basic concepts.

[@hasansharif7205]

THANK YOU MAN

[@Melthornal]

Sal, I don't know what software you are using, but often times shift and alt shift allow you to form a straight line (vertical and horizontal, respectively). I love your videos. :D

[@oreowithurea5018]

have you ever seen a good concave mirror? Unless you're very close to it, you can't see your image clearly in the mirror, it's all a blurry mess

[@okboing]

Another cool thing about a paraboloid is that it is a 3-D cross-section of a 4-D cone

[@Darkfyre755]

Oh my goodness thank you so much this video actually made me understand real images thank you 😂😂😂

[@curlywurly39]

i like how he says the 'dudes' eye driving the car :D

[@KiberMath]

@Melthornal oh! cool! i didt know it too! ))) thx you man!! I will use this in my presentation )))))

[@joanabeltrano2219]

Hey guys can someone recommend in which order I should watch these videos about optics? thanks!

[@willsonbasyal7883]

completing this playlist is enough. lol. and how did you do on you optics? you know, four years ago?

[@bilbobaggins8877]

@@willsonbasyal7883 how did you do? 3 years ago

[@zz-gz6yt]

@@bilbobaggins8877 how did u do it 8 months ago

[@S4M1_]

@@zz-gz6ythow did you do 3 years ago?

[@zz-gz6yt]

@@S4M1_ how did you do 6 days ago

[@fancuz]

thank you, this video was very usefull for me.

[@TheDevilvivek]

what is centre of curvature of mirror

[@HYP3RAZN]

he draws a cup better than i can ._.

[@HeliosBeats]

But how is it different when reflected light on a normal flat mirror (which forms virtual image) and I put a paper or wall and the light reflects onto it, than reflected light on a convex or concave mirror which at a point meets and reflects onto another thing like you said a wall or cloth, can't both mirrors have the reflected light go onto another object?

[@greasyclean]

ALL OF THE LIGHT

[@Thegamemakur]

Thank you!

[@Be1smaht]

WHy is the last drawing virtual again? shouldn't that image of the ;last drawing be upright and thus magnified?

[@blueckaym]

everyone knows that if you repeat it three times it becomes a reality

[@zacharyvietpine5619]

"water pipe"

[@SweSmiile]

parabolic mi.. mirr... mirrors xD

[@psalm2764]

Glow-baal warming.

[@microhoarray]

Probably show up in the dudes eye😂😂😂

[@malaikaswm]

@SweSmiile :D cute

[@Tarteel97]

no top comments for this video? everybody like this shit.!