History of Light
PEOPLE
PROPERTIES
DATES
STARTS/ENDS
DISCOVERIES
WITH “D”
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
1
He was considered to be the
“Father of
Electromagnetics”
2
He was the biggest
proponent of the wave
theory in the 1600’s
3
He was the biggest
proponent of the particle
theory in the 1600’s
4
He performed diffraction
experiments in the 1800’s.
5
He was credited for the
thought that “light
emanated from the eye”
6
The bending of light as it
passes through a medium of
different density.
7
The spreading of light as it
goes through a small opening
or around a barrier.
8
Light bounces off a barrier
at the same angle at which it
approaches.
9
Electrons are ejected from
the surface of a metal when
light of a certain frequency
is incident upon it.
10
Light tends to travel in a
straight line, perpendicular
to the wave front.
11
The century in which there
were two theories of light
led by Newton and Huygens.
12
The century known as the
period of Modern Physics.
13
The century known as the
“Age of Experimentation”
14
The century in which Hertz
made discoveries
15
The century in which
Alhazen predicted
refraction
16
The spreading of a wave
around a barrier
17
He combined the wave and
particle equations in the
20th century
18
Newton’s homeland
19
He experimentally confirmed
the photoelectric effect
20
Huygen’s homeland
21
Describes the mathematical
relationship between the
angle of incidence and angle
of refraction
22
Planck’s development which
uses the photon to describe
discrete quantities of light
23
A group of people who
observed refraction in 100
AD
24
An original proposal by
Faraday
25
Einstein’s contribution in
1905
26
Who is Maxwell?
27
Who was Huygens?
28
Who was Newton?
29
Who was Young?
30
Who was Plato?
31
What is refraction?
32
What is diffraction?
33
What is reflection?
34
What is the photoelectric
effect?
35
What is rectilinear
propagation?
36
What is the 17th century?
37
What is the 20th century?
38
What is the 17th century?
39
What is the 20th century?
40
What is the 11th century?
41
What is diffraction?
42
Who is deBroglie?
43
What is England?
44
Who is Lenard?
45
What is Holland?
46
What is Snell’s Law?
47
What is quantum theory?
48
Who are the Greeks?
49
What is the Electromagnetic
Theory?
50
What is the photoelectric
equation?
51