A point object O is placed at a distance of 20 cm from a convex lens of focal length 10 cm as shown in figure. At what distance x from the lens should a concave mirror of focal length 60 cm, placed so that final image coincides with the object ?
Where should an object be placed in front of a concave mirror of focal length 15 cm to have a magnification of 3 in case of (a) real image (b) virtual image ?
Point object O is placed at a distance of 20cm from a convex lens of focal length 10cm as shown in Figure., At what distance x from the lens should a concave mirror of focal length 60cm, be placed so that the final image coincides with the object?
An object infront of a concave mirror of focal length f. A virtual image is formed with a magnification of 2. To obtain a real image of same magnification the object has to be moved by a distance
An object is placed at a distance of 20 cm from the pole of a concave mirror of focal length 10 cm. The distance of the image formed is
What is the distance of an object from a concave mirror of focal length 20 cm so that the size of the real image is three times the size of the object ?
At what distance from a concave mirror of focal length 10 cm should an object be plced so that : (a) its real image is formed 20 cm from the mirror ? (b) its virtual image is formed 20 cm form the mirror ?
