Find the Radius of a Star Image Formed on the Retina

question 70

Multiple Choice

Find the radius of a star image formed on the retina of the eye if the aperture diameter (the pupil) at night is 0.70 cm and the length of the eye is 3.1 cm.Assume the wavelength of starlight in the eye is 500 nm.(1 nm = 10^-9 m)

• A)2.7 x 10^-4 m
• B)5.4 x 10^-4 m
• C)3.1 x 10^-5 m
• D)2.7 x 10^-6 m

Gain the ability to forecast stock betas over time using specific models.

Understand the calculation and significance of alpha in the single-index model.

Learn about the implications of not following a single-index structure in portfolio construction.

Understand the impact of market structure assumptions on the estimation of portfolio risk.

---

Definitions:

Alabama

A state located in the southeastern region of the United States, known for its significant historical events, especially those related to the Civil Rights Movement.

Hip Hop

A cultural movement that originated in the 1970s in the Bronx, New York City, characterized by four main elements: MCing or rapping, DJing, graffiti painting, and breakdancing.

Resistance

This term can denote opposition or defiance against an opposing force or authority, often used in historical and political contexts.

Underground Style

Typically refers to a subversive or non-mainstream fashion or trend, often associated with music, art, or cultural movements.