what is the refractive index of a substance if the light travels through the air at 3*10.8m/s. on entering in another medium its speed becomes 2*10power8 m/s. calculate the refractive index of the other medium.
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Given,
Speed of light in air= 3*10^8 m/s
Speed of light in medium= 2*10^8 m/s
Now,
Refractive index= Speed in air÷Speed in medium
So,
R.I.= 3*10^8/2*10^8
= 3/2
= 1.5
Both fractional and decimal values can be used.
Hope this helps you!
Speed of light in air= 3*10^8 m/s
Speed of light in medium= 2*10^8 m/s
Now,
Refractive index= Speed in air÷Speed in medium
So,
R.I.= 3*10^8/2*10^8
= 3/2
= 1.5
Both fractional and decimal values can be used.
Hope this helps you!
devatarika:
thank you
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