Question

Define refractive index what is the meaning the refractive index of water in 1.33

Answer 1

✨${\huge{\orange{\bold{\text{Hey Friend}}}}}$

According to the second law of refraction, the ratio of sine of angle of incidence to the sine of angle of refraction is constant for a give pair of media. That is:

$\frac{sine of angle of incidence}{sine of angle of refraction} = constant$$\frac{sin i}{sin r} = constant$
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This constant is called${\bold{refractive\space index.}}$
The value of the constant $\frac{sin i}{sin r}$ for a ray of light passing from aur into a particular medium is called the refractive index of that medium.
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By saying that the refractive index of water is 1.33 we mean that the ratio of speed of light in air (or vacuum) to the speed of light in water is equal to 1.33.
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${\bold{I Hope This Will Help You}}$

Answer 2

Answer:

The ratio of velocity of light in medium one to the velocity of light in medium two is known as Refractive Index.

When we say that Refractive Index of water is 1.33 we mean that ratio of velocity of light in air to that of in water is 1.33 .

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