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 the image.
Given, u = - 10 cm ; f = 15 cm ; v = ?
1/f = 1/v + 1/u
1/15 = 1/v + 1/-10
1/v = 1/15 + 1/10
1/v = 2+3/30 = 5/30
v = 30/5 = 6 cm
So the image is virtual and seen in the mirror.