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Photoelectric Effect
Revision as of 09:43, 8 April 2019 by
NRJC
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Key Stage 3
Meaning
A
photoelectric effect
is when
light
causes an
electrical current
.
About the Photoelectric Effect
Light
transfers energy
which can be
absorbed
by a
material
causing
electrons
to gain
energy
and move.
The
photoelectric effect
is used in digital cameras to make a picture. The
light
is
focused
through a
lens
onto a detector which generates an
electrical current
depending on the
intensity
of
light
.