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[Post New] 7 Feb 2012 14:39:59 IST
   Subject: optics
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kavya bhat (5)

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  What is the critical angle, C for calcite (=1.5) immersed in oil (=1.1)?

(1) C= tan -1 (1.1 /1.5) 
 
(2) C =  cos -1 (1.1 /1.5) 
 
(3) C=  sin -1 (1.5 /1.1)
 
(4) C=  sin -1 (1.1/ 1.5)
    
[Post New] 7 Feb 2012 22:14:16 IST
   Subject: optics
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shivansh shrivastava (35)

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