Question

What is refraction?


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Answer 1

Answer:

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

Answer 2

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

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.