A PERSON STANDING IN FRONT OF A MIRROR FINDS HIS IMAGE THINNER BUT WITH NORMAL HEIGHT , THIS IMPLIES THAT THE MIRROR IS
1.CONVEX AND CYLINDRICAL
2.CONCAVEAND CYLINDRICAL
3.CONVEX AND CYLINDRICAL WITH AXIS VERTICAL
4.CONVEX AND CYLINDRICAL WITH AXIS HORIZONTAL
Solution
The mirror is convex and cylindrical with axis of the cylinder kept vertical. Because the image will be smaller for convex mirror. So thin means the mirror is convex in horizontal direction. Now since height is not changing so there should not be any curvature in vertical direction so the mirror must be cylinder and axis will be vertical.
The mirror is convex and cylindrical with axis of the cylinder kept vertical. Because the image will be smaller for convex mirror. So thin means the mirror is convex in horizontal direction. Now since height is not changing so there should not be any curvature in vertical direction so the mirror must be cylinder and axis will be vertical.