Spherical Mirrors & The Mirror Equation - Geometric Optics

[@TheOrganicChemistryTutor]

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[@dalvinkanehiro1527]

2:23 you were expecting a science lecture but it was me DIO

[@yusra7522]

omg xdxd

[@JoaoHenrique-zx9bq]

This man is a lifesaver, no🧢

[@NatanelKaBeda-hf2lz]

Factsssss🔥🔥🔥🔥🔥

[@andrewkang1286]

These videos are always helpful

[@nachiketrakhonde6454]

Please add more lectures on geometrical and wave optics

[@rosannarosesrosie]

thank you, this concept always tripped me up during my mcat practice exams, I feel more confident attacking these problems

[@NkosikhonaMdluli-s6n]

that really helped ,thanks especially when you say ''in this video'' ,i tell myself now I have it 😅😅

[@aryamaupadhyaya6014]

I think focal length for concave mirrors are negative because lengths are measured from the pole and lengths opposite to the direction of incident ray is negative

[@maedehtahmouri3728]

yes he made a mistake

[@ItsExponent]

thanks for pointing that out. I was gonna freak out cuz he didn't address it at all lol.

[@SharonChongo-x9i]

This was really helpful😊

[@ntiedoakpan3413]

Thanks 🤝 The last diagram, why do you draw two focal point?

[@Visionarcher]

My favourite teacher

[@arlenechan8169]

why isn't "f" negative in the first example with the concave mirror?

[@caposolomon8745]

I know this is super late and you probably already pass this class along time ago. The reason you don't take do - di, is because it was a real image and not an imaginary one. Hope that might of answer your question, if it still keep you up at night a year later. XD

[@michalette]

@@caposolomon8745 thanksss :)

[@mahimasilas1542]

f as in the focal length is not negative because it is positive for CONCAVE mirrors and for CONVEX mirrors, it is negative.

[@SammyUpdate1]

Thank I used to have problem with topic in physics thank for showing me the light

[@Pak-Edits117]

Why is di at 4:26 negative, u said that the image is a real image but real images have a positive di

[@wallyalshamari3526]

great video, commenting so you get paid!

[@looihongjim9200]

Why are the two examples having differing lines drawn. how do i know if the light ray has to pass through the focal point? or whether itll bend or just reflect back

[@namaraannah7380]

I don't know whether you will answer but why is di negative

[@higgsstudy]

what if you don't know the type of mirror, the radius of the curvature, the image distance, or the lateral magnification

[@aryamaupadhyaya6014]

If you don't know the type of mirror, the values of f, v or u will be given with respective signs and if we don't know the radius, we can find the focal length by the mirror formula and double it, if the image disttance isn't known we can use mirror formula or magnification and if magnification isn't given.....well after all that this wouldn't be hard to calculate

[@abaanbaig2316]

daaaaamn it was very helpful

[@ZainabMohammed-n]

Focal length of a concave mirror is negative

[@thiangbawihahmar]

Shouldn't object distance in concave or convex mirror always be negative? 🤔

[@uwaseaimeefillette1579]

i have a problem does focal length of concave mirror negative or positive

[@fattylipid7233]

Focal length of a concave mirror is + and it's - for convex

[@KaluaBihari]

@@fattylipid7233 stop the cap its the opposite

[@fattylipid7233]

@@KaluaBihari oh yeah dude.. thx

[@KaluaBihari]

@@fattylipid7233 np

[@imenehk2221]

why did he drew 2 times a concave mirror?

[@chimphead73]

physics cramming is so fun

[@mokgonengraymond4821]

-2 is smaller than 1 so why are you saying that is >1?

[@sifundomtshali303]

he says the the absolute value of -2(which is +2) is >1

[@caposolomon8745]

@@sifundomtshali303 you beat me to it, 8 months ago.

[@KaluaBihari]

@@caposolomon8745 |-2|=+2>1

[@meccaelahdelapisa5305]

How to get the multiplicand Di. I didn't get it

[@SharonChongo-x9i]

How come the image is enlarged if the magnification is -2 which is less than 1 instead of it being reduced since -2

[@1messi_THEGOAT]

I think he made a mistake because I was also confused there for a moment but I realized it’s actually a mistake

[@fattylipid7233]

There's no mistake ..... as he said the absolute value of m should be grtr than 1 then it is enlarged and the absolute value of -2 is 2

[@HenryMwamondwe]

when i hear" in this video" all my problem solved😂🙂

[@weknee9194]

What if the given are only ho, R, F how to find the image position

[@johnpereira803]

You can’t, it’s dependent on object position

[@fattylipid7233]

Dude don't invent new questions 😂

[@ehp4019]

You's a G👊

[@thtkidobiwan5671]

lol when would the absolute value of M ever be less than 1, unless its zero . And if it could only be zero why not just say "|M|= 0 = reduced" .

[@michaelarce646]

teh ang hirap

[@gigi1467]

girl what