A Geiger counter placed 1 meter from a point source of radiation registers 100 counts per minute. If the Geiger counter is moved closer, half-way to the source, the counting rate will be
A) 25 counts/min.
B) 50 counts/min.
C) 100 counts/min.
D) 200 counts/min.
E) 400 counts/min.
Answer: E
You might also like to view...
The red shifts of the galaxies imply that the universe is expanding and that we are at the center
Indicate whether the statement is true or false
A large luminosity star
a) is always at a larger distance than a small luminosity star b) emits more light than a low luminosity star c) is always redder than a star with a small luminosity d) is at a lower temperature than a small luminosity star e) is always at a smaller distance than a small luminosity star
After a full moon, about how long is it until the next new moon?
A. a week B. 6 hours C. 2 weeks D. a month
The biological damage caused by radioactive materials is due to
A) nuclear fusion occurring within biological cells. B) thermal energy created by radioactive decay within biological cells. C) nuclear fission occurring within biological cells. D) the fast-moving daughter nuclei [or residual nuclei] passing through biological cells. E) the fast-moving alpha, beta, and gamma particles passing through biological cells.