The velocity of light in air is 3.0 × 108 ms-1. The velocity of light in glass is 1.9 × 108 ms-1.Calculate the refractive index of glass.
Answer
According to snell's law
"\\frac{n_2}{n_1}=\\frac{v_2}{v_1}"
By putting value
"\\frac{n_2}{1}=\\frac{3\\times10^8}{1.9\\times10^8}\\\\n_2=1.5"
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