concave mirrors Flashcards
concave mirror
a mirror where the reflecting surface curves inward
principle axis
the line that passes through the centre of curvature
normal to the centre of the mirror
centre of curvature (C)
the point where all normals meet
vertex (V)
the point where the principal axis cuts the centre of the mirror
focal point (F)
where incident rays are near and parallel to the principle axis, their reflected rays all pass through the same point on the principle axis
this point is the focal point
focal length (f)
the distance between the vertex and the focal point
radius of curvature (R)
the distance between the vertex and the centre of curvature
when an incident ray travels parallel to the principle axis, it is reflected ____________
through the focal point
when an incident ray passes through the focal point (F), the reflected ray is parallel _____________
to the principle axis
when an incident ray passes through the centre of curvature (C), it is reflected _______________
back onto itself
when an incident ray strikes the vertex (V), the principle axis is ________
its normal
object location– beyond C
location
between C and F
object location– beyond C
orientation
inverted
object location– beyond C
size
smaller
object location– beyond C
type
real
