Question

State Snell's law. ​

Answer 1

Answer:

$\huge\mathfrak{\underline{\underline{\pink{Answer:-}}}}$

$<font color=cyan>Formula \: \: is \: </p><p>n_1 \sin \theta_1 = n_2 \sin \theta_2</p><p>$

$<font color=green>n_1 = incident index$

$n_2 = refracted index$

$<font color=blue>\theta_1 = incident angle$

$\theta_2 = refracted angle$

$<font color=red>Snell’s law tells us the degree of refraction and relation between the angle of incidence, the angle of refraction and refractive indices of a given pair of media. We know that light experiences the refraction or bending when it travels from one medium to another medium. Snell’s law predicts the degree of the bend. It is also known as the law of refraction. In 1621, Willebrord Snell discovered the law of refraction, hence called Snell’s law.</p><p></p><p>Snell’s law is defined as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media”. Snell’s law formula is expressed as:$

$<font color=plum></p><p> \frac{sin \: i}{sin \: r} =constant=μ$

Answer 2

Answer:

Snell's Law:-

Snell's law (also known as Snell–Descartes law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.

Refraction of light at the interface between two media of different refractive indices, with n2 > n1. Since the velocity is lower in the second medium (v2 < v1), the angle of refraction θ2 is less than the angle of incidence θ1; that is, the ray in the higher-index medium is closer to the normal.