A Camera Lens Has a Focal Length of 50

question 24

Multiple Choice

A camera lens has a focal length of 50.0 mm and an aperture setting of 4.00. What is the aperture diameter of this lens?

• A) 12.5 mm
• B) 10.1 mm
• C) 13.6 mm
• D) 14.2 mm
• E) 15.0 mm

Recognize the impact of cultural factors on child development and self-esteem.

Identify the characteristics and effects of various forms of child maltreatment.

Understand the development of self-concept and self-esteem during middle childhood.

Recognize the role of parenting styles and attitudes in children’s achievement and social behaviors.

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Definitions:

Bottom-up Processing

An approach to information processing that starts with details or elements to build up a comprehensive picture or understanding.

Top-down Processing

A cognitive process that emphasizes the importance of conceptual or top-level processing in understanding the world and involves perceptions that are guided by prior knowledge, experiences, or expectations.

Action Potential

The brief wave of positive electrical charge that sweeps down the axon.

Frequency

The rate at which something occurs over a particular period of time or in a given sample.