Physics, asked by ranjukrishnamishra, 1 year ago

pls answer me this fast ​

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Answered by Atαrαh
0

n-refractive index

n \: w =  \frac{c \: air}{v \: water}

 \frac{4}{3}  =  \frac{3 \times  {10}^{8} }{v \: w}

v \: w =  \frac{9 \times  {10}^{8} }{4}  = 2.25 \: \times  {10}^{8}

I hope this helps ( ╹▽╹ )

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