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Q1:

The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as

A chromatic aberration

B spherical aberration

C astigmatism

D coma.

ANS:A - chromatic aberration

Chromatic aberration: The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as Chromatic aberration.



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