In One Particular Case, the Limiting Angle of Resolution for an Eye

question 39

Multiple Choice

In one particular case, the limiting angle of resolution for an eye is $1.4 \times 10 ^ { - 4 } \mathrm { rad }$ . What is the minimum separation between two point sources of light that the eye can distinguish if they are at a distance of $40 \mathrm {~m}$ from the observer?

• A) \(2.8 \mathrm {~mm}\)
• B) \(5.6 \mathrm {~mm}\)
• C) \(8.4 \mathrm {~mm}\)
• D) \(1.4 \mathrm {~mm}\)
• E) \(4.7 \mathrm {~mm}\)

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Definitions:

Motivators

The factors in Herzberg’s theory that cause real, long-term motivation, usually containing intrinsic motivation factors (examples: interesting and challenging tasks, advancement, achievement, growth).

Instrumentality

The likelihood that something good (or bad) will come from an increase in effort.

Expectancy Theory

A motivation theory stating that an individual's motivation is related to their expectation of a reward and the attractiveness of that reward.

Manifest Needs Theory

A psychological theory that focuses on observable needs that motivate an individual to perform certain behaviors.