Agniveer Vayu or IAF Group X 19 Jan 2023 Paper

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Question : 23 of 70
 
Marks: +1, -0
If the refractive index of water is â€Œ
4
3
and that of glass is â€Œ
5
3
, then the critical angle of incidence for light tending to go from glass to water is:
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