You Place a Point Source of Light at the Bottom

question 117

Multiple Choice

You place a point source of light at the bottom of a pool of water 1.00 m deep. The source emits rays upward in all directions. You notice that a circle of light is formed by the rays that are refracted into the air and that the rays outside of this circle are reflected back into the water. The index of refraction of water is 1.33. The radius R of the circle at the surface of the water is approximately

• A) 0.75 m.
• B) 1.00 m.
• C) 1.13 m.
• D) 1.33 m.
• E) infinite.

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Definitions:

Cytosine

One of the four main bases found in DNA and RNA, which pairs with guanine during the nucleic acid structure formation.

Sex Chromosome Pattern

The configuration of chromosomes that determines an individual's sex, typically XX for females and XY for males in humans.

Males

Members of the sex that produces sperms, typically engaged in fertilizing the ovum in reproduction

XY

A sex chromosome combination present in males that determines male biological characteristics in humans.