Question

What mirror or Lents can created an image upside down ?

Answer 1

Answer:

mirrors : convergent mirror

lens : convex lens

Explanation:

mirrors : concave mirror gives upside down images everytime except when the object is located in front of F (focal point)

1. The object is located beyond C

• image will be located in between the F and C
• inverted image.
• reduced in size
• real image

   2. The object is located between C and F  or on C

• Image will be located between C and F
• inverted
• larger than the object dimensions.
• real image
• (when the object is @ C , image size = object size )

   3. The object is located in front of F  

• image will be located behind the mirror
• upright image
• magnified
• virtual image
• (when the object is located @ F ,no image is formed )

lens : convex lens gives upside down images everytime except when the object is located in between in front of F (focal point)

The properties of images

• varies depending on the position of the object.

• distance > 2F (when the object is far away)

1. Real
2. Diminished
3. Inverted
4. smaller than the object
5. occurs in the opposite side of the lens

• F < distance < 2F (object approaches the lens)

1. Real
2. Inverted
3. gets magnified when approaching the focal point (Image size = object size at 2F point. this becomes gradually enlarged and get infinitely large @ F point )

• distance < F ( object passes the focal point )

1. Virtual
2. Erected
3. Magnified
4. occurs in the same side of the lens.(magnifying glass is one example which uses this formation, mentioned in graph 2 )

Characteristics of the images of each mirror and lens are mentioned in tables for further reference