00:01
So, radius of curvature of concave mirror, so we'll take radius r, this is equal to 12 .7 m.
00:10
So, focal length, focal length, this is r by 2, which is equal to 12 .7 divided by 2, which will be 6 .35 meters.
00:31
So, the image formed is upright, so image will be virtual.
00:34
So, image will be virtual as it is formed upright.
00:42
Now, girl, she's standing at a distance u for concave mirror magnification.
00:49
So, m, this is equal to minus v by u is equal to, so this is equal to 3.
00:57
So, we will say that v, this is equal to minus 3u...