(a) What is a real image?
(b) What type of mirror can be used to obtain a real image of an object?
(c) Does the mirror mentioned in part (b) form real image for all locations of the object?
(a) An image which can be obtained on a screen is called a real image.
(b) A concave mirror can be used to obtain a real image of an object.
(c) No, it does not form real image for all locations of the object. When the object is placed between pole an focus, a virtual image if formed.