00:01
In this case, the object is placed in front of the lens.
00:05
It means to measure the object distance, we need to move in the opposite direction of the incident race.
00:12
So that direction is taken as negative.
00:16
So object distance here will be minus 10 centimeter.
00:22
Now focal length is 5 cm.
00:24
It means for convex lens, we know that the focal length is positive.
00:30
So f is equal to plus 5 centimeter right so first we use the lens formula one upon b minus one upon u is equal to one upon f to find the value of v so one upon b minus u is equal to minus 1 by 10 is equal to 1 by 5 it means v is equal to 10 centimeter it means the image will be formed on the other side of the lens because as come because the object distance is negative it is on the left of the lens so in this image distance is positive it means it is on the right side of the lens so we have the value of object and even distance and we know the magnification is equal to v by u and which is 10 by minus 10 this means minus 1 now here the negative sign indicate the image will be inverted, image will be inverted and the one indicates that it is of same size as the object as object.
01:51
So and we know that the inverted images are real images.
01:56
So image will be real inverted same size as the object and at a distance of 10 cm on the right side of the length...