Which one of the following statements is true concerning the focal length of a l

Question

Which one of the following statements is true concerning thefocal length of a lens?

a. The focal length is the same for allcolors.
b. The focal length is different fordifferent colors because of spherical aberration.
c. The focal length is different fordifferent colors because of dispersion.
d. The focal length is different fordifferent colors because of polarization.
e. The focal length is different for different colors because ofreflection. Which one of the following statements is true concerning thefocal length of a lens? The focal length is the same for allcolors. The focal length is different fordifferent colors because of spherical aberration. The focal length is different fordifferent colors because of dispersion. The focal length is different fordifferent colors because of polarization. The focal length is different for different colors because ofreflection.

Explanation / Answer

The focal length is different fordifferent colors because of dispersion.

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