A concave mirror gives an image three times as large as the object placed at a distance of 20 cm from it. For the image to be real, the focal length should be

A concave mirror gives an images three times as large as the object placed at a distance of 20 cm from it. For the images to be real, the length should be

An object is placed at a distance of 30 cm from a concave mirror of focal length 15 cm. The image will be

A concave mirror forms a real image of an object placed in front of it at a distance 30 cm, of size three times the size of object. Find the focal length of mirror.

If an object is placed at a distance of 40 cm from a concave mirror of focal length 20 cm , them the image wil be

A concave mirror forms a real image of an object placed in front of it at a distance 30 cm, of size three times the size of object. Find a. the focal length of mirror b. position of image.

A spherical mirror forms a real image three times the linear size of the object. If the distance between the object and the image is 80 cm, the focal length of the mirror is

An object is placed at a distance of 20 cm from a concave mirror of focal lenght 10 cm. What is the image distance?

An object is placed at a distance of 20 cm from a concave mirror of focal lenght 10 cm. What is the image distance?