ri of a is 56 c/v answer fast
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it means that r.i. of a is 56 times less than that of vacuum.
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RI stands for the refractive index of medium.
So RI of a is 56 c/v ,
here c= speed of light in vacuum
and v= speed of light in the given medium with RI 56.
So c/v=56
=> v=c/56
=> v=3×10^8/56
=> v=5.39×10^6m/s
So RI of a is 56 c/v ,
here c= speed of light in vacuum
and v= speed of light in the given medium with RI 56.
So c/v=56
=> v=c/56
=> v=3×10^8/56
=> v=5.39×10^6m/s
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