An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of image.

f = +15 cm,
u = -10 cm
1/f = 1/v +1/u
1/v = 1/15 +1/10
1/v = 5/30
v = + 30 cm
The image is formed 6 cm behind the mirror; it is a virtual and erect image