What you mean by focal point of spherical refracting surface

1.	What you mean by focal point of spherical refracting surface
Answer» EXPLANATION: The refracted ray passes through the FOCAL point. • A ray that passes through the focal point. – The refracted ray is PARALLEL to the CENTRAL axis. • A ray that passes through the CENTER of curvature.

Answer»

The refracted ray passes through the FOCAL point. • A ray that passes through the focal point. – The refracted ray is PARALLEL to the CENTRAL axis. • A ray that passes through the CENTER of curvature.

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What you mean by focal point of spherical refracting surface

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