Object Image and Focal Distance Relationship (Proof of Formula)
12:29
Added: 1 year ago
From: khanacademy
Views: 14,113
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  • isnt the image at the start virtual because its behind the mirror.

    Kenza1996 3 weeks ago

  • can i just say that this got me an amazing grade on my physics lab. THANK YOU KHAN ACADEMY!!!

    gavrilovskid 10 months ago 3

  • WOW! It's so magical seeing you proving a formula... but anyways, how do the scientists actually found out this equation????

    MrVHI123 1 year ago

  • Well your videos absolutely rule! Their so so good

    griftorifto2 1 year ago

  • @griftorifto2 Too bad *their* aren't any videos on grammar yet. ;-)

    gavin32 1 year ago

  • Cool. Well explained.

    Still a bit tricky to follow the cursor when you are pointing to something.

    A bigger (more obvious) cursor would be easier to see where you are pointing.

    Very enjoyable stuff though. - Thanks V much

    zalida100 1 year ago

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