An object moving at a speed of 5m/s towards a concave mirror of focal length f=1 m is at a distance of 9m. The average speed of the image is

An object is at a distance of 5 m from a convex mirror of focal length 10 cm.Where is he image formed ?

An object is moving towards a concave mirror of focal length 24 cm. When it is at a distance of 60 cm from the mirror, its speed is 9 cm//s . The speed of its image at that instant , is

An object is moving towards a concave mirror of focal length 24 cm. When it is at a distance of 60 cm from the mirror, its speed is 9 cm//s . The speed of its image at that instant , is

(a) A short linear object of length b lies along the axis of a concave mirror of focal length f at a distance u from the pole. What is the size of the image? (b) If the object begins to move with speed V_(0) , what will be the speed of its image?

For a concave mirror of focal length f, image is 2 times larger. Then the object distance from the mirror can be