Question

(i) Refractive index of glass with respect to air is 3/2. The speed of light in air is :
a) 1.5 x 10⁸ m/s b) 2 × 10⁸ m/s c) 3 x 10⁸ m/s d) 4.5 x 10⁸ m/s
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Answer 1

Answer:

3×10^8 is the speed of light in air