State snell's law of refraction of light class 10


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State Snell’s law of refraction of light. Express it mathematically. Write the relationship between absolute refractive index of a medium and speed of light in vacuum.

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SNELL'S LAW: The ratio of the sine of the angle of incidence to the ratio of sine of angle of refraction is a constant for a light of a specified colour and for the specified pair of media.

MATHEMATICALLY,

 \frac{sin i}{sin r}=  constant

ABSOLUTE REFRACTIVE INDEX: 
n_{m} =  \frac{c}{v}

where  n_{m} is the refractive index of the medium, c is the speed of light in vacuum and v is the speed of light in the medium.

Hope it helped,
NISHTHA.


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