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a transparent optical element with flat and polished surfaces that disperse light.
Prism
is the angle between the reflected ray and the normal.
Angle of Reflection
is the angle between the incident ray and the normal.
Angle of Incidence
ray of light that hits a surface
Incident ray
formed when an opaque object blocks the light of another object.
Shadow
do not allow any light to pass through them.
Opaque
objects that allow light to pass through them
Transparent object
partly allow light to pass through them.
Translucent object
why does the flash lightning appears before the roar of thunder is heard?
BECAUSE THE LIGHT TRAVELS FASTER THAN THE SOUND.
candles, matches and electric lamps are an example of _____________ light.
ARTIFICIAL
Objects that produce unnatural light.
ARTIFICIAL SOURCE OF LIGHT
luciferin is a chemical that causes fireflies to appear luminous. This source of light is called
bioluminescent source
produce and emit natural light. Their bodies have luciferin, a chemical the causes them to appear luminous.
FIREFLIES
a nonluminous sources
MOON
Primary source of natural light on Earth.
SUN
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