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Derive the expression for lateral shift produced when a ray of light passes through a parallel sided slab. |
Answer» SOLUTION : From `DELTA QTR`,`sin ( i-r) = ( R T )/( QR )` From `Delta QNR `, `cos r = ( QN )/( QR )` LATERAL shift `= QR xx sin ( i - r) `and `QR = ( QN )/ ( cos r )` Lateral shift ` = ( QN )/( cos r ) sin ( i - r)` Lateral shift `= ( t )/( cos r ) sin ( i - r )` |
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