Reflection/ Refraction Flashcards
1
Q
Optic axis
A
Is a straight line that passes through the centre of the lens
2
Q
Focal point
A
Is a point at which light rays parallel to the optic access converge or from which light rays appear to diverge
3
Q
Optical centre
A
The centrepoint of a lens through which the light moves without changing direction
4
Q
Focal length
A
Is the distance between the optical centre and the focal point 
5
Q
What is the magnification formula
A
Magnification= image size/ object size
OR
Magnification = image distance/ object distance
