Module 4 Flashcards
Reflected rays are sent back in a single
definite direction
REGULAR or SPECULAR
REFLECTION
Occurs in rough and uneven surfaces.
IRREGULAR or DIFFUSED
REFLECTION
Normals are not parallel with each
other.
IRREGULAR or DIFFUSED
REFLECTION
The incident ray and reflected ray lie
in one plane (plane of incidence) at
the point of incidence on the SAME side of the normal to the
surface.
False
The angle of incidence is equal to
the angle of reflection.
True
The Law of Reflection is Always Observed
(regardless of the orientation of the surface)
True
states that if a reflected ray be reversed in
direction, it will retrace its original path.
REVERSIBILITY PRINCIPLE
are opaque materials capable of regular
reflection, capable of producing a clear
image.
Mirrors
the change in the direction of the
incident ray, measured by an angle
known as angle of deviation.
DEVIATION
The smallest size of the mirror that will enable the
observer to see the whole image of an object, fully, or
completely, no more, no less.
MINIMUM SIZE
OF A PLANE MIRROR
The smallest size of the mirror that will
enable him to see his whole image from the
top of his head to the bottom of his shoes,
is always
one-half of his height
When a ray of light approaches a smooth polished surface and the light ray bounces back, it is called the
reflection of light
A ray of light travels in straight line as long as it is reflected
False
Two plane mirrors inclined at different angles can only form one image.
False
The image obtained by the plane mirror is always virtual and erect.
True
