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For an equilateral prism it is observed that when a ray strikes grazinglyat one face it emerges grazingly at the other, its refrative index will be |
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Answer» SOLUTION :`i_1=i_2=90^@` `r_1=r_2=A/2=30^@ IMPLIES MU= (SIN i_1)/(sin r_1)=2` |
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