A Geiger counter registers a count rate of 8,000 counts per minute from a sample of a radioisotope.The count rate 24 minutes later is 1,000 counts per minute.The half-life of the radioisotope is
A)3 minutes.
B)4 minutes.
C)6 minutes.
D)8 minutes.
E)12 minutes.

Question

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The Answer of A Geiger counter registers a count rate of 8,000 counts per minute from a sample of a radioisotope.The count rate 24 minutes later is 1,000 counts per minute.The half-life of the radioisotope is
A)3 minutes.
B)4 minutes.
C)6 minutes.
D)8 minutes.
E)12 minutes.

A Geiger Counter Registers a Count Rate of 8,000 Counts