00:01
So we have an object placed 10 centimeters away from a converging lens.
00:07
So this is 10 centimeters.
00:09
And we're told that this lens has a focal length of 30 centimeters.
00:12
So i probably didn't give myself the most room to draw the scale of this appropriately.
00:17
Let's say this is 10 centimeters.
00:19
And then three times this distances are focal length, so maybe right about here.
00:24
And we want to know what's the nature of this image, where is it produced, and things like that.
00:29
So this is 30.
00:32
So we have 1 over 10 plus 1 over the image distance is equal to 1 30th.
00:40
And so the image distance, if we saw for this, comes out to be negative 15 centimeters.
00:45
So it is to the left of the lens.
00:47
It's on the same side as the object...