Question

An object is placed at a distance 10m from convex mirror of focal length 5cm.

Answer 1

Given, u = - 10 cm ; f = 5 cm ; v = ?

We have,
1/f = 1/v + 1/u

1/5 = 1/v + 1/-10
1/v = 1/5 + 1/10
1/v = (2+1)/10 = 3/10
v = 10/3 = 3.33 cm
So the image is virtual and seen in the mirror.