Optics > Geometric Optics > Reflection | DCS# 6A20.42 |
turntable | 101-02-D4 |
11" tupperware tub | 101-02-D4 |
water | |
gooseneck lamp or arrow light source | 101-16-B |
food coloring | 101-02 |
The shape of the surface is given by z = (ω 2/2g)r2. This is a parabola with focal length f = g/2ω 2.
Use glitter to make flow more visible.REFERENCES
Use glycerine instead of water for a more stable surface.
Use an arrow light source to investigate the images formed.
This demonstration can be set up in the display case.
The Astrophysical Journal, 346: L41-L44.
AJP 58(3),280