Physics, asked by Luckybls, 10 months ago

plz ..............solve......... question no . 7 (1st question)

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Answered by advsanjaychandak

Laws of refraction

1.incident Ray and refracted Ray,and normal at the point of incidence all lie in the same plane

2.sin I/sin r= constant

When light is going from vacuum to another medium,then value of refracted index is called absolute refractive index

Refractive index=speed of light in vacuum/speed of light in medium

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Answered by kitkat555

7 answers....

laws of refraction...

(i) incident ray , refracted ray and normal lie on same plane.

(ii) the ratio of angle of incident to the angle of refraction is constant for the given pair of media where ...

$\frac{ \sin(i) }{ \sin(r ) } = constant$

it is also called Snell's law.

Absolute refractive I is known as hlthe ratio of seep of light in vacuum to the speed of light in that medium.

here is ur ans...hope it helps you

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