Question

an object is placed at a distance of 20cm in front of convex mirror at a radius of curvature 30cm find the position and nature of the image

Answer 1

so image would be real inverted and enlarged
And it would between C2 and F2

Answer 2

f=R/2=30/2=15cm
u=object distance=20cm
Mirror formula = 1/v-1/u=1/f
therefore, 1/v=1/u+1/f
1/v=1/20+1/15
taking L.C.M.
1/v=35/300
therefore, v=300/35=8.571cm

so image is real and inverted