Light

• If an object is placed between C and F in-front of a concave mirror

  The position is beyond C and it is enlarged
• If can object is placed at infinity in front of a concave mirror

  The imagine is formed at F, it is real and inverted and point sized.
• If an object is placed beyond C infront of a concave mirror

  The image is formed between F and C it is real and inverted, and diminished
• If an object is placed at C infront of a concave mirror

  The image is formed at C, it is real and inverted and same size
• If an object is Placed at F infront of a concave mirror

  The image is formed at infinity it is real and inverted, highly enlarged
• If an object is placed between P and F infront of a concave mirror

  the image is formed behind the mirror it is virtual and erect and enlarged
• Convex lenses are used as magnifying glasses or reading glasses
• If an object is placed at infinity infront of a convert mirror


  The image is formed at F, behind the mirror. It is point sized and virtual erect.
• If an object is placed between infinity and P infront of a convex mirror


  The image is formed between P and F, behind the mirror. It is diminished and virtual and erect
• A ray parallel to the principal axis in a concave mirror


  Will pass through F
• A ray parallel to the principal axis in a convex mirror


  Will appear to diverge from F (behind the mirror)
• A ray passing through the centre of curvature will always be reflected along its original path