Question

what is the image formed by lences have cross of colours?
a. chromatic disruption
b. chromatic aberration
c. chromatic reflection
d. chromatic reaction​

Answer 1

Answer:

Answer

Chromatic aberration, also known as “color fringing” or “purple fringing”, is a common optical problem that occurs when a lens is either unable to bring all wavelengths of color to the same focal plane, and/or when wavelengths of color are focused at different positions in the focal plane. Chromatic aberration is caused by lens dispersion, with different colors of light traveling at different speeds while passing through a lens. As a result, the image can look blurred or noticeable colored edges (red, green, blue, yellow, purple, magenta) can appear around objects, especially in high-contrast situations.

SO the maain reason is focal length of lens is different for different colors.

Explanation:

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