Question

What is refraction in physics explain the law of refraction??​

Answer 1

$\large{\pmb{\underline{\underline{\sf{Refraction:-}}}}}$

Refraction is the bending of a light or sound wave, or the way the light bends when entering the eye to form an image on the retina.

$\large{\pmb{\underline{\underline{\sf{Examples~ Of~ Refraction:-}}}}}$

Bending of the sun's rays as they enter raindrops, forming a rainbow.

$\large{\pmb{\underline{\underline{\sf{Laws~ of~ Refraction:-}}}}}$

The angle of incidence is the angle between the incident ray and the normal; denoted as ‘i’. The angle of refraction is the angle between the refracted ray and the normal; denoted as ‘r’.

Laws of refraction state that:

• The incident ray, reflected ray and the normal, to the interface of any two given mediums; all lie in the same plane.

• The ratio of the sine of the angle of incidence and sine of the angle of refraction is constant.

Answer 2

Answer: IN Simple Terms ,

Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms and rainbows. Even our eyes depend upon this bending of light

Explanation:

Laws of Refraction

1. The incident ray, the refracted ray and the normal to the interface of two transparent media at the point of incidence, all lie in the same plane.

2. The ratio of sine of angle of incidence to the sine of angle of refraction is a constant, for the light of a given color and for the given pair of media. This law is also known as Snell’s law of refraction.

   N = sin i/ sin r  

This constant is also called the refractive index of the second medium with respect to the first.

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