1.

The speed of light in water is (3/4)th of speed of light in vacuum. Theabsolute refractive index of water is1) 2/32) 4/33) 3/44) 5/3​

Answer» N WATER = 3/4 SPEED IN VACCUMSPEED IN WATER = 3×3×10^8÷4= 9/4×10^8REFRACTIVE INDEX = SPEED IN VACCUM / SPEED IN WATERREFRACTIVE INDEX = 4/3


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