REFLECTION ON SPHERICAL
MIRRORS
•Concave
•Convex
A
B
QUALITATIVE
CHARACTERISTICS OF
IMAGES FORMED IN
CONCAVE MIRROR
SCIENCE QUARTER 2 – MODULE 3:
RAY DIAGRAM
• is a diagram that traces the path
that light takes in order for a person
to view a point on the image of an
object.
Parts of Concave Mirror
f
PA
C
F
V
Principal Axis a line passing through the center of the sphere and attaching to the
mirror in the exact center of the mirror
Center of Curvature - the center of the sphere from which the mirror was sliced
Focal Point - Midway between the vertex and the center of curvature
Vertex - The point on the mirror's surface where the principal axis meets the mirror
Focal Length - the distance from the mirror to the focal point
RULES IN RAY DIAGRAMMING FOR
CONCAVE MIRROR
P-F Ray - A ray of light parallel to the principal axis is reflected passing through the
principal focus
F-P Ray - A ray of light passing through the focus, F is reflected parallel to the
principal axis
C-C Ray - A ray of light passing through the center of the curvature, C reflects along
its path
V Ray. A ray of light directed to the vertex reflects at equal angle from the principal
axis
P-F RAY.
A RAY OF LIGHT PARALLEL TO THE PRINCIPAL AXIS IS
REFLECTED PASSING THROUGH THE PRINCIPAL FOCUS
F-P RAY
A RAY OF LIGHT PASSING THROUGH THE FOCUS,
F IS REFLECTED PARALLEL TO THE PRINCIPAL AXIS
C-C RAY
A RAY OF LIGHT PASSING THROUGH THE CENTER
OF THE CURVATURE, AND REFLECTS ALONG ITS
PATH
V RAY
A RAY OF LIGHT DIRECTED TO THE VERTEX
REFLECTS AT EQUAL ANGLE FROM THE PRINCIPAL
AXIS
LOST
Location
Orientation
depends on the location of the
image
upright/erect or inverted
Size
Same/undiminished,
reduced/diminished or enlarged
Type
real or virtual
Location
Orientation
Between C and F
inverted
Size
Reduced or smaller than
object
Type
Real
ACTIVITY
A
B
C
D
A
Location
Orientation
At C
inverted
Size
Same size of the object
Type
Real
B
Location
Orientation
Beyond C
inverted
Size
Larger than the object
Type
Real
C
Location
No image being formed
Orientation
No image being formed
Size
No image being formed
Type
No image being formed
D
Location
Opposite side of mirror
Orientation
Upright
Size
Larger
Type
Virtual
https://www.pbslearningmedia.org/r
esource/arct15-scilensmirrorlab/lens-and-mirror-lab/
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• List down some applications of concave
mirrors