Question

State Snell’s law of refraction of light in detail and give its uses .

Answer 1

Explanation:

Snell's law tells us the degree of refraction and relation between the angle of incidence, the angle of refraction and refractive indices of a given pair of media. We know that light experiences the refraction or bending when it travels from one medium to another medium. ... It is also known as the law of refraction.

Answer 2

Answer:

Snell’s law is defined as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media" and the constant is called refractive index of the 1st medium with respect to 2nd medium.

$\frac{sin i}{sin r}$ = μ ( refractive index)

Applications of Snell’s Law

Snell’s law has a wide range of applications in physics especially in the branch of optics. It is used in optical apparatus such as eyeglasses, contact lenses, cameras, rainbows. There is an instrument called a refractometer that uses Snell’s law to calculate the refractive index of liquids. It is used all the time in the candy-making industry.