Ini adalh tugas fisika tahunan. Jadi setiap menginjak kelas 11 pasti dapet tugas presentasi mengenai gelombang elektromagnetik oleh Bu Vera.

1. VISIBLE LIGHT

2. VISIBLE LIGHT
SPECTRUM
DEFINITION
FREQUENCY
WAVELENGTH
DISCOVERER
MANUFACTURE
APLICATION

5. DEFINITION
Visible light is a range of
electromagnetic radiation that can
be detected by the human eye.
We see these waves as the colors of
the rainbow. Each color has a
different wavelength. Red has the
longest wavelength and violet has
the shortest wavelength. When all
the waves are seen together, they
make white light.

6. FREQUENCY AREA
Visible light has frequency area
between 430 – 750 THz (1 THz =
1012 Hz).

7. WAVELENGTH
A typical human eye will respond to
wavelengths from about 390 – 790
nm. The wavelength of visible light
is between 400 – 790 nm.

8. The colors of visible light have
different wavelength and frequency
one each other.
Color
Wavelength Interval
Frequency Interval
Violet
~400 to 380 nm
~700 to 750 THz
Blue
~500 to 400 nm
~600 to 700 THz
Cyan
~520 to 500 nm
~580 to 600 THz
Green
~565 to 520 nm
~530 to 580 THz
Yellow
~590 to 565 nm
~510 to 530 THz
Orange
~625 to 590 nm
~480 to 510 THz
Red
~790 to 625 nm
~430 to 480 THz

9. Who was discover the
visible light?
Visible
light
was
discover by Sir Issac
Newton at 1704. He
tested the visible light
from the sun that
through on a prism and
produces a bearn of
light that can divided
into several colors such
as red, orange, yellow,
green, blue, indigo, and
purple.

10. RogerBacon is
the first person
who marked
that spectrum
shows in a glass
of water.
Johann Wolfgang
Von Goethe
argued that the
continuous
spectrum is
diverse
phenomena

12. How to happen?
Each color in a rainbow corresponds to
a different wavelength of
electromagnetic spectrum.
When white light
shines through a
prism, the white
light is broken
apart into the colors
of the visible light
spectrum. Water
vapor in the
atmosphere can
also break apart
wavelengths
creating a rainbow.

13. APPLICATION
Satellite
Rainbow
Spectrometer
Refractometer

14. SPECTROMETER

15. Rainbow
Why do we can see rainbows in the
sky?

17. Conclusion
• Visible light waves are the only
electromagnetic waves that we can see.
• visible light wave has a wavelenght (λ) is
400- 790 nm, while Frequency (f) of visible
light wave is 400- 750 THz.
• Visible light found by Roger Bacon, Sir
Isaac Newton, and Johann Wolfgang Von
Goethe.
• Application: Satellite, Spectofotometer,
and rainbow.

18. BIBLIOGRAPHY
• http://chemistry.about.com/od/chemistryglossar
y/g/visible-light-definition.htm
• http://cmapspaceexp.ihmc.us/rid=11623382622
40_482398789_32665/29%20Visible%20Light.c
map
• http://science.hq.nasa.gov/kids/imagers/ems/vis
ible.html
• http://en.wikipedia.org/wiki/Visible_spectrum
• http://scienceprojectideasforkids.com/2010/howis-visible-light-produced/
• http://chemwiki.ucdavis.edu/Physical_Chemistry
/Kinetics/Reaction_Rates/Experimental_Determi
nation_of_Kinetcs/Spectrophotometry

19. THANK YOU