I took this photo years ago that shows the four visible emission lines of hydrogen. The grating was 1.00 m from the tube and had 760 lines per mm.
On Tuesday, April 7, 2020, 07:05:33 AM EDT, Jeffrey Schnick via Phys-l <phys-l@mail.phys-l.org> wrote:
Anybody got any ideas for a virtual hydrogen spectrum lab for an algebra-based physics course for life science majors? They will have studied two-slit interference and will have been introduced to the hydrogen atom. I used to teach a lab where students took a picture of a hydrogen lamp through a grating with a black and white instant polaroid camera. The film was sensitive to visible and infrared radiation. The difficulty for the students in analyzing the photo was establishing the angular scale; that represents a geometry problem appropriate for the class. The difficulty for me right now is, I didn't save any of the photos and I'm not finding any on line. Still that's just one possible direction for the lab. The PHET simulators relevant to that topic seem to be java programs and I seem to recall there being a security issue with java. I don't really want to ask the students to install a java runtime environment on their computers and I'm not sure it is an option for all of t
hem.
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