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     EduGorilla 
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    If the refractive index of water is 4/3 and that of a given slab of glass immersed in it is 5/3, what will be the critical angle of incidence for a ray of light tending to go from glass to water?

    Options :-

    1. sin–1 (3/4)
    2. sin–1 (3/5)
    3. sin–1 (4/5)
    4. Cannot be determined
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Reply To: If the refractive index of water is 4/3 and that of a given slab of glass immersed in it is 5/3, wha….
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