Ray diagrams - Convex vs Concave Flashcards
If object is greater then 2F (twice the distance of primary focus)
What does the image turn out as (CONVEX)
real
inverted
diminished
If object is greater then F but less than 2F
What does the image turn out as (CONVEX)
real
inverted
larger than object
If object is less then F
What does image turn out as (CONVEX)
Virtual
upright
larger than object
What is the rule for objects in concave lenses
image is always virtual upright
decreases in size the further object is from the lens
What is a real image
A real image is an image that can be projected onto a screen.
Rays of light actually pass through the image
What is a virtual image
A virtual image cannot be projected onto a screen.
It appears to come from behind the lens and can only be seen by looking through the lens.