The speed of light in water is (3/4)th
of speed of light in vacuum. The
absolute refractive index of water is
1) 2/3
2) 4/3
3) 3/4
4) 5/3
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SPEED IN WATER = 3/4 SPEED IN VACCUM
SPEED IN WATER = 3×3×10^8÷4= 9/4×10^8
REFRACTIVE INDEX = SPEED IN VACCUM / SPEED IN WATER
REFRACTIVE INDEX = 4/3
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Answer:
4/3
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