1.

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

Answer»

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:



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