OCPP 102 CH. 1 Subsection 1 Optical Theory 1 Principles of Light,
Electro-magnetic Spectrum, Visible and Invisible Light
1. Who introduced Corpuscular Theory of light? Pythagoras
2. What does the Corpuscular Theory of light That light consists of tiny particles
state? or bundles of corpuscles which are
emitted by the light source and ab-
sorbed by the eye allowing for a vi-
sual experience
The theory also describes reflection
and explains how light can be used
to create electrical energy.
It also explains reflection and rain-
bows
It also explains shadows in that tiny
particles of light will be stopped
by an object and unobstructed light
particles will continue on to form a
shadow
3. What did Christian Huygens theorize about That light travels as waves and could
light? be demonstrated by wave motion in
water
4. What is an Indistinct shadow? Occurs when light from two separate
sources falls on the same object, two
shadows overlap resulting in an in-
distinct shadow
5. What does the Electromagnetic Wave theory ex- That light travels in a series of waves
plain? moving outward from a light source
, This theory explains how a rainbow is
formed
6. What does the Wave Theory of light state and This theory describes light as waves
who proposed it? that move out/spread out from the
source that generates the light. Each
color is a different wavelength.
Proposed by Christiaan Huygens
1678
7. Which theory do we use today to explain light? The Electromagnetic Wave Theory
which describes the range of wave-
lengths expressed in nanometers
nm.
It describes light as waves mov-
ing outward from the light source
in concentric rings much like waves
created by a pebble tossed in a
pond.
8. Which theory explains how white light is broken The Electromagnetic Wave Theory
into its component parts when passing through
a prism?
9. What are the component colors created by Red
white light passing through a prism? Orange
Yellow
Green
Blue
2/6
Electro-magnetic Spectrum, Visible and Invisible Light
1. Who introduced Corpuscular Theory of light? Pythagoras
2. What does the Corpuscular Theory of light That light consists of tiny particles
state? or bundles of corpuscles which are
emitted by the light source and ab-
sorbed by the eye allowing for a vi-
sual experience
The theory also describes reflection
and explains how light can be used
to create electrical energy.
It also explains reflection and rain-
bows
It also explains shadows in that tiny
particles of light will be stopped
by an object and unobstructed light
particles will continue on to form a
shadow
3. What did Christian Huygens theorize about That light travels as waves and could
light? be demonstrated by wave motion in
water
4. What is an Indistinct shadow? Occurs when light from two separate
sources falls on the same object, two
shadows overlap resulting in an in-
distinct shadow
5. What does the Electromagnetic Wave theory ex- That light travels in a series of waves
plain? moving outward from a light source
, This theory explains how a rainbow is
formed
6. What does the Wave Theory of light state and This theory describes light as waves
who proposed it? that move out/spread out from the
source that generates the light. Each
color is a different wavelength.
Proposed by Christiaan Huygens
1678
7. Which theory do we use today to explain light? The Electromagnetic Wave Theory
which describes the range of wave-
lengths expressed in nanometers
nm.
It describes light as waves mov-
ing outward from the light source
in concentric rings much like waves
created by a pebble tossed in a
pond.
8. Which theory explains how white light is broken The Electromagnetic Wave Theory
into its component parts when passing through
a prism?
9. What are the component colors created by Red
white light passing through a prism? Orange
Yellow
Green
Blue
2/6
