Multiple Choice
A certain radioactive isotope placed near a Geiger counter registers 160 counts per second.Eight hours later,the counter registers 10 counts per second.What is the half-life of the isotope?
A) 8 hours
B) 6 hours
C) 4 hours
D) 2 hours
E) none of these
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q54: A device that could be used to
Q55: The amount of radiation we personally encounter
Q56: Both X-rays and gamma rays are emitted
Q57: A nucleon is either<br>A)a positron or an
Q58: A magnetic field is applied to a
Q60: The mass of an atomic nucleon is
Q61: When radium (A = 88)emits an alpha
Q62: The high temperature of the Earth's interior
Q63: Which radiation has no electric charge associated
Q64: A gram of radioactive material has a