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Question
Which of the following quantities related to a lens depend on the wavelength or wavelengths of the incident light?
(a) Power
(b) Focal length
(c) Chromatic aberration
(d) Radii of curvature
One Line Answer
Short Note
Solution
(a) Power
(b) Focal length
(c) Chromatic aberration
The focal length, power and chromatic aberration are dependent on the refractive index of the lens, which itself is dependent on the wavelength of the light.
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