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What is the meaning of spherical abberation ?is it prodduction of two images only

What is the meaning of spherical abberation ?is it prodduction of two images only
 

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1 Answers

Arun
25750 Points
5 years ago
Spherical aberration is an optical effect observed in an optical device that occurs due to the increased refraction of light rays when they strike a lens or a reflection of light rays when they strike a mirror near its edge, in comparison with those that strike close to the centre

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