h/e Apparatus and h/e Apparatus Accessory Kit
012-04049J
4
®
Equipment Setup
The standard setup for h/e experiments is shown in
Figure 5. Details for setting up the apparatus are
described below.
1.
The Light Source design allows simultaneous connec-
tion of two Light Aperture assemblies: one on the
front and one on the back. If you are using only one
Light Aperture and h/e Apparatus, install the Light
Block (supplied with the Accessory Kit) in the mount-
ing groove closest to the body of the housing on the
back of the Light Source (see Figure 6).
2.
Slide the Light Aperture Assembly into the center
mounting groove on the front of the Light Source.
Secure it in place by finger-tightening the two thumb-
screws against the front of the Light Source
housing.
3.
The Lens/Grating Assembly mounts on the support
bars of the Light Aperture Assembly (Figure 7).
Loosen the thumbscrew, slip it over the bars, and
finger-tighten the thumbscrew to hold it securely.
➤
NOTE:
The grating is blazed to produce the
brightest spectrum on one side only. During your
experiment, you may need to turn the Lens/Grating
Assembly around in order to have the brightest
spectrum on a convenient side of your lab table.
Coupling Bar Assembly
Light Aperture
Assembly
Lens/Grating
Assembly
Support Base Assembly
h/e Apparatus
Light Block
Light
Source
Press to discharge the
instrument.
ON/OFF Switch
THE CONTROLS
Connect to a digital
voltmeter (the output is a
direct measurement of
the stopping potential).
Figure 7. Lens/Grating Mounting Detail
Rear Channel
of Mercury
Light Source
Light Block
Figure 6. Installing the Light Block
Figure 5. Equipment Setup Using a Mercury Vapor Light Source and the h/e Apparatus
Содержание h/e Apparatus
Страница 2: ......
Страница 14: ...h e Apparatus and h e Apparatus Accessory Kit 012 04049J 10 Notes...
Страница 22: ......