Question

Speed of light in a vacuum = 3.0 × 10^8 m/s Refractive index of air = 1.0 Light travels at a speed of 2.0 × 10^8 m/s in glass. Use this information to calculate the refractive index of glass.

Answer 1

Answer:

i have not studied that i am in 9th

Answer 2

Answer:

we know that n2/ n1 = V1 / V2

therefore, n = 3/2

n= 1.5 for glass