The Angular Resolution of the Eye Is About 5 ×

question 14

Multiple Choice

The angular resolution of the eye is about 5 × 10^-4 rad. The Moon is about 400,000 km from the earth and has a diameter of about 3500 km. What is the smallest feature on the Moon that can be resolved with the unaided eye?

• A)400 km
• B)1000 km
• C)100 km
• D)1.8 km
• E)200 km

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Definitions:

Risk Aversion

The preference to avoid risk, where investors require higher returns to compensate for higher risk.

Expected Returns

The average of all possible returns for an investment, weighted by the likelihood of each outcome.

Standard Deviations

A statistical measure indicating the amount of variation or dispersion from the average or expected value, widely used in finance to assess investment risk.

Risk Premium

The extra return expected by investors for holding a risky asset over a risk-free asset, compensating them for the risk of loss.