Collimation Refers to Shaping the Radiograph Beam to the Area

question 4

Multiple Choice

Collimation refers to shaping the radiograph beam to the area that is to be imaged.Using a round collimation instead of a rectangular collimation results in radiation reduction to the patient by 60%.

• A) Both statements are true.
• B) Both statements are false.
• C) The first statement is true; the second is false.
• D) The first statement is false; the second is true.

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Definitions:

Market Risk Premium

This is the extra return expected by investors for holding a risky market portfolio instead of risk-free assets.

Security Market Line

A line that represents the risk versus expected return of the market; used to assess the performance of investments compared to the market.

Systematic Risk

The inherent risk associated with the overall market or economy that cannot be eliminated through diversification.

Expected Return

The anticipated return on an investment, calculated as the weighted average of all possible returns with the probabilities of their occurrence.