An object is 20 cm away from a concave mirror with focal length 15 cm. If the object moves with a speed of 5 m/s along the axis, then the speed of the image will be

An object is 20 cm away from a concave mirror of focal length, 15 cm. If the object moves with a speed of 5 m/s along the axis, then the instantaneous speed of image will be

If an object is 30 cm away from a concave mirror of focal length 15 cm the image will be

If an object is 40 cm away from a concave mirror of focal length 20 cm, the image will be

An object is at 20 cm from a concave mirror of focal length 10 cm, the nature of image is

An object is at 20 cm from a concave mirror of focal length 10 cm, the nature of image is

An object is placed 40 cm from a concave mirror of focal length 20 cm, the image formed is

An object is placed 40 cm from a concave mirror of focal length 20 cm. The image formed is

An object is placed 40 cm from a concave mirror of focal length 20 cm. The image formed is