00:01
We're going to have an object placed in front of a mirror, right? so i'm going to draw this, and i actually don't know which way to curve the mirror yet.
00:10
We're going to have an object that is 2 .7 centimeters tall.
00:18
And it's going to produce an image that is 5 .4.
00:22
So we already know that the magnification is a factor of 2.
00:28
And so we need to get something that's enlarged, right? and upright.
00:40
There's only one combination that does that, right? and that is it must be a concave mirror, and you must be within the focus.
00:50
Right.
00:50
So you end up with some situation like this.
00:55
So we also know that this will be virtual.
01:02
So we have p here is 12 centimeters.
01:08
And we're going to have to find q to be able to do this...