Show that the solid angle subtended by a disk shown to the right at the point P which is a distance z from the disk on a line perpendicular to the center of the disk is:
? = 2?(1-cos?)
Here is a picture that may help with the question...
A nuclear power plant located on Lake Huron operates an environmental monitoring
program which includes annual fish sampling. At the laboratory, the fish are analyzed
for the following radionuclides:
• Gamma-emitters
• Sr-90/Y-90
• Carbon-14
• Tritium
One year, some fish samples (lake trout)...