A Solar Oven Uses a Parabolic Reflector to Focus the Sun's

question 307

Multiple Choice

A solar oven uses a parabolic reflector to focus the sun's rays at a point 7 inches from the vertex of the reflector (see figure) . L = 7 inches
Write an equation for a cross section of the oven's reflector with its focus on the positive y axis and its vertex at the origin.

• A) \(y = 28 x ^ { 2 }\)
• B) \(y = \frac { 1 } { 7 } x ^ { 2 }\)
• C) \(x ^ { 2 } = 28 y\)
• D) \(y ^ { 2 } = 7 x\)
• E) \(x ^ { 2 } = 7 y\)

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Definitions:

Absorption

The process by which one substance, such as a solid or liquid, takes up another substance, such as a gas or liquid, through atomic or molecular interactions.

Nonlinear Molecule

A molecule that does not have a straight-line or linear shape, often having a bent or three-dimensional structure.

Vibrational Modes

The different ways in which the atoms in a molecule can move relative to each other, important in the study of molecular IR spectroscopy.

Atoms

The smallest units of matter that retain the properties of an element, comprising protons, neutrons, and electrons.