Answers

2014-04-21T20:46:57+05:30
 Notice there is a significant difference between them- about 33%. This means that the
this is a bit complicated- it depends on the law of reflection its also called as snell's law the formula is n sin (a)=N sin (A) wer a,A are angles. n and N r constants called the index of reflection which relates to the kind of relates to the kind of matrerial.Air has an "n" value of1.000. most prisms r made of glass which has an N value around 1.5 . notice there is a significant difference between them about 33% this means tyt the bending angle going from air to glass is large .now the "n" value of water ia abt 1.333,which is much closer to glass (only abt 10% difference) this means there will be less bending going from water to glass and back again .the less the bending ,the less the dispersive power nd so it will have less dispersion if the glass prism is in water than if it wer in air

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