A ray of light incident at a point on the principal axis of a convex lens passes undeviated through the lens. What special name is given to this point on the principal axis?

Optical centre

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Second centre

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First focus

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Second focus

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Solution

The correct option is A Optical centre
Optical centre is the point through which any ray passes undeviated. It the the center of the lens.

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A ray of light incident at a point on the principal axis of a convex lens passes undeviated through the lens. What special name is given to this point on the principal axis?

The correct option is A Optical centreOptical centre is the point through which any ray passes undeviated. It the the center of the lens.

The correct option is A Optical centre
Optical centre is the point through which any ray passes undeviated. It the the center of the lens.