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REFLECTION AND REFRACTION
WITH THE RAY BOX
INTRODUCTION
In this laboratory we have conducted two experiments first one was reflection experiment to
check the relationship between angle of reflection and angle of incidence. The second one was
the refraction test. In this case we have conducted the experiment to check whether the Snell’s
law is validated. And the refraction of rays from air into a transparent plastic medium, the index
of refraction for given medium and the focal properties of spherical reflecting and refracting
surfaces also investigated in this laboratory session.
PROCEDURE
Reflection
1. All of the slits from the ray box (except the central slit) was covered by black type to
produce a single ray to investigate reflection and refraction from a plane surface.
2. Placed the prism with 600 angle on a piece of white paper and Drew a straight line along
the face of the prism and placed a small dot in the center of the line.
3. Placed the ray box about 15 cm away from the prism and adjusted incidence angle until to
be about 600.Drew a straight line with a edge in the path of the incident ray and the other
one in the path of the reflected ray and repeated that process two more times.
4. Constructed a normal at the point of the dot to the face of the p...