Download Drawing Ray Diagrams for Concave Mirrors

Grade 10 Science – Optics Unit
Cardinal Ambrozic C.S.S.
• Made by an artist Anish
Kapoor
•168 stainless steel sheets
• appears seamless
•Inspired by liquid Mercury
•Convex outer portion
•Concave inner portion
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A concave mirror is a mirror in
which the reflecting surface is
caved in
Another name for the concave
mirror is a CONVERGING
MIRROR.
EXAMPLES:
 Inside of a spoon
 Used in headlights
 Makeup Mirror
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CENTRE OF CURVATURE (C) - The centre
point of a sphere that forms the curved
mirror
PRINCIPAL AXIS (PA) – A horizontal line (90⁰)
from the centre of curvature to the centre of
the mirror
VERTEX (V) - The point where the principal
axis meets the curved mirror.
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FOCAL POINT (F) - A point half-way between
the centre of curvature and the vertex where
all parallel light rays come together.
FOCAL LENGTH (f) - The distance or length
between the focal point and the vertex.
f
F
C
Principal Axis
V
1.
2.
3.
4.
Place the bottom of the object on the
principal axis.
Draw three incident rays from the top of
your object and their respective reflected
rays
Draw the image so that the bottom is on the
principal axis and the top is where the 3
rays meet.
Determine the SALT characteristics of the
image
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Refer to SMARTNote: Reflection Rules
for Concave Mirrors
RAY DIAGRAM #1: Object between F
and C
S Larger
A Inverted
L In front of mirror
Mirror
T Real
C
F
V
PA
RAY DIAGRAM #2: Object beyond C
S Smaller
A Inverted
L In front of mirror
Mirror
T Real
C
F
V
PA
RAY DIAGRAM #3: Object between concave
mirror and F
S Larger
A Upright
L Behind mirror
T Virtual
Mirror
C
F
V
PA