A Lens with Spherical Surfaces Suffers from Spherical Aberration Because

question 169

Multiple Choice

A lens with spherical surfaces suffers from spherical aberration because

• A) the lens sags under its own weight, distorting the image.
• B) the starlight is distorted by turbulence in Earth's atmosphere.
• C) different colors are focused at different distances from the lens.
• D) different parts of the lens focus the light at different distances from the lens.

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Definitions:

Extension Lines

Extension lines are lines drawn on a blueprint or sketch that extend from the outline of a part to call out dimensions or indicate a detail’s location.

Dimension Lines

Lines used in a drawing to show the direction and extent of a dimension, often terminating in arrowheads that point precisely to the dimension's extent.

Callout

An annotation on a drawing, usually detailing information of a specific feature, dimension, or instruction.

Field Welds

Welds performed at the construction site rather than in the workshop or factory, typically for assembling large structures.