3B Scientific U14600 Optics on magnetic boards - Manual

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PHYSICS
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Sample experiments for Optics on magnetic boards, basic kit
U14600 with Multiple-ray projector U40110
08/03 ALF
Exp.1: Reflection on a plane mirror
Demonstration of the law of reflection. An
incident ray is projected to the mirror
surface under the angle α and reflected
under the same angle α’.
Exp.2: Virtual image in a plane mirror
Two rays of light are projected through
point O to a plane mirror. The extensions
of the reflected rays intersect in the image
point O’.
Exp.3: Focal length of a concave
mirror
The centre of curvature C of the concave
mirror is located by means of a ray which
reflects on itself. Rays parallel to the
principal axis intersect in the focal point F.
The distance of the centre of curvature C
is twice as long as the distance of the
focus F.
f = r/2
In case the rays are non-parallel to the
optical axis, the reflected rays intersect in
a point on an axis which is referred to as
the focal plane. The focal plane passes
through the focal point and is
perpendicular to the optical axis.