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Re: [Phys-l] absorption spectra



Bright sunlight reflecting from white clouds yields visible Fraunhofer lines.

Dan M
Dan MacIsaac, Associate Professor of Physics, SUNY-Buffalo State College
222SciBldg BSC, 1300 Elmwood Ave, Buffalo NY 14222 USA 716-878-3802
<macisadl@buffalostate.edu> <http://PhysicsEd.BuffaloState.edu>
Physics Graduate Coordinator & Dept Chair Pro Tem (acting Jan-Aug 2008)




On Oct 29, 2008, at 12:39 PM, Anthony Lapinski wrote:

Thanks! This could work. I mainly want the students in the darkened
classroom using a grating to look at light sources.

Forum for Physics Educators <phys-l@carnot.physics.buffalo.edu> writes:
Anthony

Have them look at the sky in daylight. But not directly at the sun!
(You knew that bit).

-Krishna

On Wed, Oct 29, 2008 at 9:26 AM, Anthony Lapinski
<Anthony_Lapinski@pds.org> wrote:
In my high school astronomy class, I will be discussing light and
spectrya
soon. I wish to do a lab/activity where students can analyze various
ligoht
sources with a diffraction grating. It is easy to show continuous
spectrca
with a candle or light bulb, and emission spectra with gas tubes. I am
looking for a way to show an absorption spectrum. In the past I had
students use colored filters to cover an incandescent light bulb. This
sort of mimics the atmosphere of a star.

Does anyone have other ways to show absorption spectra using simple
materials?

_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l

_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l


_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l