If the Distance from the Source to the Image (SID)

question 12

Multiple Choice

If the distance from the source to the image (SID) is reduced by half, how is the x-ray intensity at the image affected?

• A) It is increased 4 times.
• B) It is doubled.
• C) It is reduced by 1/2.
• D) It is reduced by 1/4.

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.