Question

Speed of light in water and glass is 2.24×10^8m/s and 2×10^8m/s. What is the refractive index of water with respect to glass​

Answer 1

Speed of light in water = 2.24 × 10^8  

Speed of light in water = 2 × 10^8  

Refractive index of water = Speed of light in water/speed of light in glass

= (2.24 × 10^8)/(2 × 10^8)  

= 1.12

Answer 2

Speed of light in water = 2.24 × 10^8  

Speed of light in water = 2 × 10^8  

Refractive index of water = Speed of light in water/speed of light in glass

= (2.24 × 10^8)/(2 × 10^8)  

= 1.12