Changing the Shape of the Lens to Correctly Focus Light

question 51

Multiple Choice

Changing the shape of the lens to correctly focus light on the retina is called

• A)refraction.
• B)accommodation.
• C)astigmatism.
• D)presbyopia.

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Definitions:

Dynamic Equilibrium

A state of balance between continuing processes, often referring to the balance of substances in a biological system or to the balance of forces in a mechanical system.

Gelatinous Mass

A jelly-like substance, often found in the body as part of various structures or tissues.

Static Equilibrium

A state where an object is at rest or its center of mass moves at a constant velocity, with no net force acting upon it.

Gravitational Equilibrium

The state where gravitational forces within a star are balanced by the outward pressure of nuclear fusion, key in stellar structure.