Which property of light is
demonstrated by the diagram to the right?
A.
Refraction
C. Dispersion
B.
Reflection
D. Diffraction
Diffraction
is the bending of waves behind obstacles into the shadow region. It
is explained by Huygen's Principle.
Huygen's
Principle
Every point on a wave front
can be considered as a source of tiny wavelets that spread out in
the forward direction at the speed of the wave. The new wave
front is the envelope of all the wavelets tangent to the wavelets.
