The Intensity of Gamma Rays Passing Through a Material as a Function

question 26

Multiple Choice

The intensity of gamma rays passing through a material as a function of thickness,x is given by where n is the number of atoms per cm³ and $\sigma$ is the absorption cross section.If the intensity of gamma rays of a particular energy is reduced by half when they passed through 1 cm of lead,what is the absorption cross section for the gamma rays? The density of lead is 11.3 g/cm³ and its molar mass is 207 g.

• A)3.5 \(\times\) 10^-22 cm²
• B)6.8 \(\times\) 10 ^-22 cm²
• C)4.6 \(\times\) 10 ^-23 cm²
• D)2.1 \(\times\) 10 ^-23 cm²
• E)8.4 \(\times\) 10 ^-24 cm²

Comprehend the mechanics and effects of bond conversion on company finances.

Learn the impact of bond issuance on company cash flows and ownership control.

Understand the principles of valuing bonds and the relevance of market rate versus contract rate.

Identify the characteristics and implications of installment notes, including interest computation and principal repayment.

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Definitions:

Larger Population

Refers to a bigger group or category of individuals from which samples can be drawn for statistical analysis.

Smaller Sample

A subset of a population that contains fewer observations, which may affect the reliability of statistical conclusions.

Generalize

The process of applying the findings from a sample to a broader population, implying that the results have wider applicability beyond the original study conditions.

Nondirectional Test

A hypothesis that does not predict the direction of the difference or association between variables, only that there is a difference.