Lenses Flashcards
1
Q
Focal point
A
Point where parallel beams converge
2
Q
Magnification equation
A
Image height/ object height
v/u
3
Q
Lens makers equation
A
1/v = 1/u + 1/f
U is negative
4
Q
Power of the lens
A
How much curvature added. Measured in Diopters D or m^-1
P= 1/f
5
Q
Polarisation
A
Light oscillates in the electric and magnetic field, these are at right angles to each other
