Physical Science

Chapter 18: Radioactivity and Nuclear Reactions

Use Logarithms

1.
Find the age of a sample in which the ratio NL/NU has been measured to be 0.66.
A)4.39 billion years
B)3.88 billion years
C)4.36 billion years
D)3.28 billion years
2.
Find the age of a sample in which the ratio NL/NU has been measured to be 0.75.
A)3.63 billion years
B)3.88 billion years
C)4.49 billion years
D)5.25 billion years
3.
Find the age of a sample in which the ratio NL/NU has been measured to be 0.82.
A)3.63 billion years
B)3.88 billion years
C)4.36 billion years
D)5.81 billion years
4.
Find the age of a sample in which the ratio NL/NU has been measured to be 0.96.
A)4.49 billion years
B)3.88 billion years
C)4.36 billion years
D)5.25 billion years
5.
Find the age of a sample in which the ratio NL/NU has been measured to be 1.00.
A)4.49 billion years
B)3.63 billion years
C)4.36 billion years
D)5.81 billion years
6.
Find the age of a sample in which the ratio NL/NU has been measured to be 1.10.
A)4.53 billion years
B)3.88 billion years
C)3.63 billion years
D)4.81 billion years
7.
Find the age of a sample in which the ratio NL/NU has been measured to be 1.15.
A)4.96 billion years
B)3.63 billion years
C)4.49 billion years
D)5.25 billion years
8.
Find the age of a sample in which the ratio NL/NU has been measured to be 1.25.
A)3.63 billion years
B)3.88 billion years
C)5.25 billion years
D)5.81 billion years
9.
Find the age of a sample in which the ratio NL/NU has been measured to be 1.30.
A)5.25 billion years
B)3.63 billion years
C)4.36 billion years
D)5.40 billion years
10.
Find the age of a sample in which the ratio NL/NU has been measured to be 1.45.
A)5.81 billion years
B)3.63 billion years
C)4.36 billion years
D)5.25 billion years
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