A concave mirror forms a real image of height twice the size of the object. Now the object and the screen are so moved that a real image of height three times the size of the object is formed. If the displacement of the screen is 18 cm, determine the displacement of the object and the focal lenght of the mirror.

A concave mirros forms a real image magnified two times. If both the object and the screen are moved a real image magnified three times of the object is formed. If the screen is moved through a distance of 25 cm , then determine the displacement of the object and focal lenght of the mirror.

A concave mirror forms a real image three times larger than the object on a screen. The object and screen are moved until the image becomes twice the size of the object. If the shift of the object is 6cm, find the shift of screen.

A concave mirror forms a real image three times larger than the object on a screen. The object and screen are moved until the image becomes twice the size of the object. If the shift of the object is 6cm, find the shift of screen.

An objects is placed in front of a concave mirror. The mirror forms an image of magnification 2 on a screen. Now the object is moved such that on shifting the screen another 20 cm from the mirror, the image formed on the screen is magnified three times. Determine the displacement of the object and the focal length of the mirror.