Images Formed by Mirrors
Images formed by Concave Mirror
Position of object | Position of image | Nature of image |
At infinity | At focus (F) | Real, diminished, inverted |
Beyond centre of curvature (C) | Between F and C | Real, diminished and inverted |
At C | At C | Real, same size, inverted |
Between C and F | Beyond C | Real, enlarged, inverted |
At F | At infinity | Real, enlarged, inverted |
Between F and P | Behind the mirror | Virtual, enlarged and upright |
Uses of Concave Mirrors· Used by doctors to focus light inside the ears, mouth and throat.
· Used as shaving mirrors to see an enlarged view of face.
· Used as reflectors in torches and vehicle headlights to form powerful beams. |
Images formed by Convex Mirror
Position of object | Position of image | Nature of image |
Irrespective of the position | Behind the mirror | Virtual, diminished, upright |
Uses of Convex Mirrors· Used in driving mirror to give a view of the traffic behind.
· Used at blind corners of roads/driveways to enable vehicles to see the traffic around the corner. Uses of Plane Mirrors
· Used as looking glass.
· Used in periscope used in ships, aircraft etc.
· Used in kaleidoscope, a children’s toy. |
Note-
A periscope is an optical instrument that uses a system of prisms, lenses or mirrors to reflect images through a tube.
Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube.
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A kaleidoscope is a toy that uses light and mirrors to reflect objects and create beautiful, fascinating repeating patterns.
There are many different types of kaleidoscopes that create different patterns,
but all use the same basic laws of physics, manipulating light and reflection.