A plane mirror of semicircular shape (radius = 1 m) is placed in y-z plane with its diameter along y-axis and centre at origin. A point object in the form of light source is placed on the axis of mirror at point (5, 0, 0). At a distance of 10 m from plane mirror there is a wall also parallel to y-z plane. The ratio of area of spot of light on wall to that of mirror is
Physics · Geometrical optics · law of reflection and plane mirror
A plane mirror of semicircular shape (radius = 1 m) is placed in y-z plane with its diameter along y-axis and centre at origin. A point object in the form of light source is placed on the axis of mirror at point (5, 0, 0). At a distance of 10 m from plane mirror there is a wall also parallel to y-z plane. The ratio of area of spot of light on wall to that of mirror is
Options