About Ray Optics.....
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https://goo.gl/search/Geometrical+optics
Geometrical optics,
go through this link
Geometrical optics,
go through this link
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It is related to logs
logarithm ?
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a light ray is a line that is perpendicular to the light's wavefront . Its tangent is collinear with the wave vector . light rays in homogeneous media are straight .....
geometric optics describe how rays propagate through a optical system .
geometric optics describe how rays propagate through a optical system .
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