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How to approach in these type of questions of geometrical optics??

Manish Jha , 7 Years ago
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anser 1 Answers
Arun
Dear Manish
 
I am getting my answer 
as
refrective index = sqrt (5/2)
 
 
Regards
Arun (askIITians forum expert)
Last Activity: 7 Years ago
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