Converging lenses

Question 1

What to an incident ray parallel to the axis do in Converging lenses?

Answer 1

Refracts through the lens and passes through the PRINCIPLE FOCUS on the other side

Question 2

What to an incident ray passing through the principle focus do in Converging lenses?

Answer 2

Refracts through the lens and travels parallel to the axis

Question 3

What to an incident ray passing through the centre of the lens do in Converging lenses?

Answer 3

Carries on in the same direction

Question 4

How do you draw a ray diagram?

Answer 4

Draw a parallel line from the top of the object and draw where it refracts (Through the principle focus).
Draw a line to the centre of the lens from the top of the object and draw it on the other side (continues in same direction)
Where thee 2 lines meet is the top of the image.
(Repeat for the bottom of the object if not on axis)

Question 5

In ray diagrams, what does a converging lens look like?

Answer 5

/\
  |
  |
 \/
But with a straight line between the arrows

Question 6

What image will an object at 2F produce?

Answer 6

Same size
Inverted
Real

Question 7

What image will an object between F and 2F produce?

Answer 7

Bigger than the obeject, and beyond 2F
Inverted
Real

Question 8

What image will an object Closer than F produce?

Answer 8

Bigger
Upright
Virtual
Same side of lens!