Diffused reflection occurs at a _______ surface.   rough   polished   smooth   Hint Half-n-half Clue   Two plane mirrors are placed so that the angle between them is 90o. If an object is placed in the space between them, then the number of images formed will be _______.   infinite   4   3   2   Half-n-half Clue   One of the laws of reflection of light states : The angle of _______ is always equal to the angle of reflection.   incidence   refraction   convergence   Half-n-half Clue   The image formed by a plane mirror is _______.   sometimes real and sometimes virtual   always real   always virtual   Half-n-half Clue   For the image of an object to be formed 5 cm behind a plane mirror, the object must be placed _______ in front of the plane mirror.   more than 5 cm   less than 5 cm   exactly 5 cm   Half-n-half Clue