Science Physics Light-Reflection and refraction Share with your friends Share 0 Prince Kumar answered this Solution:- Diverging mirror is also known as Convex mirror. u= -30 h of image= 1/5(h of object) Since the image is erect , h of image is positive. Now, let height of object be x and h of image therefore will be x/5 we know that -v/u =h(i)h(o) :. -v/-30 = (x/5)/x -v = -30x/5x -v = -6 :. v = 6 The image is formed 6 cm behind the mirror. Now, v=6 u= -30 Using the mirror formula 1/v + 1/u = 1/f or 1/6 + -1/30 = 1/f 5-1/30 =1/f 4/30 = 1/f 2/15 =1/f f=15/2 or f= 7.5 cm 0 View Full Answer