A straight rod is partially immersed in water (=1.33)(=1.33) .Its submerged portion appears to be inclined at 450450 with the surface when viewed vertically from air. The actual inclination of the rod is
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WHEN REFRACTIVE INDEX DECREASES, THE SPEED OF LIGHT INCREASES.
THEREFORE WHEN SPEED OF LIGHT INCREASES, IT BENDS AWAY FROM THE NORMAL.
WHEN IT BENDS AWAY FROM THE NORMAL, THE LIGHT RAYS DIVERGES.
THUS , IT ACTS AS A DIVERGING LENS ( CONCAVE LENS ).
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32 degrees with the normal
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