Answer:
Convex Mirror
Explanation:
Convex mirror always form virtual and upright image so here at the position of blind turn we need a mirror which always form virtual and upright image to see the position of all objects on the other side correctly.
Now we have two options for such type of mirror condition
1) Plane Mirror
2) Convex Mirror
Since convex mirror has outward convex surface so here it will cover large field of view as compare to plat mirror so it is better to use Convex mirror at the position of blind turn.
