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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