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Question

A point within the lens, where a line drawn through the diameter of lens meets principal axis is known as

A
Focal length
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B
Optic Center
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C
Aperture
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D
Center of curvature
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Solution

The correct option is B Optic Center


Correct answer is (b).

Optic centre is a point within the lens, where a line drawn through the diameter of lens meets principal axis and through which light passes without undergoing any deviation so a ray of light passing through the optical center does not changes its direction.


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