An Achromatic Lens

question 155

Multiple Choice

An achromatic lens

• A)is used to correct spherical aberration in reflecting telescopes.
• B)is used to correct chromatic aberration in refracting telescopes.
• C)is used to correct spherical aberration in refracting telescopes.
• D)is used to correct chromatic aberration in reflecting telescopes.
• E)contains two mirrors and focuses the light back through the primary mirror.

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Definitions:

Monocular

Pertaining to or concerning solely one eye.

Binocular

Relating to, used by, or involving both eyes at the same time for obtaining visual perception.

Kinetic

Pertaining to motion, objects being in motion or the study of dynamics that involve motion.

Linear Perspective

Linear perspective is a technique in art and photography that creates the illusion of depth and distance on a flat surface, by having parallel lines converge towards one or more vanishing points on the horizon.