The refractive index of medium is \( 1.5 \). Determine speed of light in medium.<br/>\( c = 3 \times 10^8m/s \)
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Correct Answer: Option B
Explanation:
Refractive index: \( n = \dfrac{c}{v} \) \( v = \dfrac{c}{n} \) \( v = \dfrac{3 \times 10^8}{1.5} \) \( v = 2 \times 10^8m/s \) Therefore, the speed is \( 2 \times 10^8m/s \).
Refractive index: \( n = \dfrac{c}{v} \) \( v = \dfrac{c}{n} \) \( v = \dfrac{3 \times 10^8}{1.5} \) \( v = 2 \times 10^8m/s \) Therefore, the speed is \( 2 \times 10^8m/s \).