Particles Emitted in Radioactive Decay Have Different Penetrating Power

question 98

Multiple Choice

Particles emitted in radioactive decay have different penetrating power. The penetration depths of two particles, labeled X and Y, in a column of water are shown below. Which of the following statements could not be true?

• A)X is an  particle and Y is a  particle.
• B)X is a  particle and Y is a  ray.
• C)X is an  particle and Y is a  ray.
• D)X is a  ray and Y is a  particle.
• E)All of the above are possible.

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Definitions:

Third-person Effect

A social psychological phenomenon where individuals tend to believe that others are more influenced by mass media messages or persuasive communications than they are themselves.

Fear-based Messages

Communications aimed at eliciting fear in order to influence behavior or attitudes towards a particular action or outcome.

Autokinetic Effect

A visual phenomenon where a stationary point of light in a dark room appears to move because of small, involuntary eye movements.

Convert Communicators

People perceived as credible sources because they are arguing against their own previously held attitudes and behaviors.