 find the position of image its nature and size. So, 1 upon F, 1 upon V, 1 upon U you know why this negative and this clear or not? Sure we are done because 1 upon V is equal to 1 upon 15 plus 1 upon 20 denominator is 64 plus 3 clear. So, 7 by 60 so image will form approximately image will form approximately at 60 by 7 centimeters clear it has come positive by itself. Now the other aspects what are the other aspects? Position of the image is done nature of the image.