Which of the Following Does NOT Represent a Major Drawback

question 89

Multiple Choice

Which of the following does NOT represent a major drawback when developing a refracting telescope for astronomy?

• A) Lenses cannot be made with focal lengths that produce very high magnifications.
• B) Glass lenses are not completely transparent to certain kinds of light,restricting the observable wavelength range.
• C) The lens brings different wavelengths of light to a focus at different positions.
• D) The presence of defects in the glass lens through which the light must pass causes some of the light to scatter out of the beam.

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