Question

The speed of light in transparent medium is 2.4 x 10⁸ m/s. Calculate absolute
refractive index of the medium.​

Answer 1

Answer:The refraction index, n, of a transparent medium is defined as the ratio of speed of light in vacuum to the speed of light in that medium.  The formula is n=  

v

c

​  

.

where the speed of light c=3×10  

8

m/s and v is the speed of light in the desired medium which is given as v=2.4×10  

8

m/s.

Therefore, n=  

2.4×10  

8

m/s

3×10  

8

m/s

​  

=1.25.

Hence, the refractive index of the transparent medium is 1.25

Explanation:

Answer 2

Answer:

Refractive Index of medium is 1.25

Explanation:

Speed in vacuum (C) = 3×10⁸ m/s

Speed in medium (v) = 2.4×10⁸ m/s

Refractive index = C/v = 3×10⁸/2.4×10⁸ = 1.25